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Finding the Third Proportional to 513,692 and 818,106

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Solution

The third proportional to 513,692 and 818,106 is: 1,302,915.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,692 : 818,106 = 818,106 : x
  2. Step 2: Convert to fraction form
    513,692/818,106 = 818,106/x
  3. Step 3: Cross multiply
    513,692x = 818,106 × 818,106
  4. Step 4: Simplify right side
    513,692x = 669,297,427,236
  5. Step 5: Solve for x
    x = 669,297,427,236/513,692
  6. Step 6: Final answer
    x = 1,302,915.81

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.