Finding the Third Proportional to 53,892.50 and 72,499.50

Step by Step Solution

1. Step 1: Write the proportion equation
   53,892.50 : 72,499.50 = 72,499.50 : x
2. Step 2: Convert to fraction form
   53,892.50/72,499.50 = 72,499.50/x
3. Step 3: Cross multiply
   53,892.50x = 72,499.50 × 72,499.50
4. Step 4: Simplify right side
   53,892.50x = 5,256,177,500.25
5. Step 5: Solve for x
   x = 5,256,177,500.25/53,892.50
6. Step 6: Final answer
   x = 97,530.78