Finding the Third Proportional to 72,061.31 and 153,478.13

Step by Step Solution

1. Step 1: Write the proportion equation
   72,061.31 : 153,478.13 = 153,478.13 : x
2. Step 2: Convert to fraction form
   72,061.31/153,478.13 = 153,478.13/x
3. Step 3: Cross multiply
   72,061.31x = 153,478.13 × 153,478.13
4. Step 4: Simplify right side
   72,061.31x = 23,555,534,853.52
5. Step 5: Solve for x
   x = 23,555,534,853.52/72,061.31
6. Step 6: Final answer
   x = 326,881.85