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Finding the Third Proportional to 29,387 and 63,902

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Solution

The third proportional to 29,387 and 63,902 is: 138,954.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,387 : 63,902 = 63,902 : x
  2. Step 2: Convert to fraction form
    29,387/63,902 = 63,902/x
  3. Step 3: Cross multiply
    29,387x = 63,902 × 63,902
  4. Step 4: Simplify right side
    29,387x = 4,083,465,604
  5. Step 5: Solve for x
    x = 4,083,465,604/29,387
  6. Step 6: Final answer
    x = 138,954.83

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.