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Finding the Third Proportional to 426,558 and 987,503

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Solution

The third proportional to 426,558 and 987,503 is: 2,286,118.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,558 : 987,503 = 987,503 : x
  2. Step 2: Convert to fraction form
    426,558/987,503 = 987,503/x
  3. Step 3: Cross multiply
    426,558x = 987,503 × 987,503
  4. Step 4: Simplify right side
    426,558x = 975,162,175,009
  5. Step 5: Solve for x
    x = 975,162,175,009/426,558
  6. Step 6: Final answer
    x = 2,286,118.59

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.