Finding the Third Proportional to 42,132 and 61,469

Step by Step Solution

1. Step 1: Write the proportion equation
   42,132 : 61,469 = 61,469 : x
2. Step 2: Convert to fraction form
   42,132/61,469 = 61,469/x
3. Step 3: Cross multiply
   42,132x = 61,469 × 61,469
4. Step 4: Simplify right side
   42,132x = 3,778,437,961
5. Step 5: Solve for x
   x = 3,778,437,961/42,132
6. Step 6: Final answer
   x = 89,680.95