Finding the Third Proportional to 53,061.75 and 72,100.13

Step by Step Solution

1. Step 1: Write the proportion equation
   53,061.75 : 72,100.13 = 72,100.13 : x
2. Step 2: Convert to fraction form
   53,061.75/72,100.13 = 72,100.13/x
3. Step 3: Cross multiply
   53,061.75x = 72,100.13 × 72,100.13
4. Step 4: Simplify right side
   53,061.75x = 5,198,428,025.02
5. Step 5: Solve for x
   x = 5,198,428,025.02/53,061.75
6. Step 6: Final answer
   x = 97,969.40