Finding the Third Proportional to 53,433 and 81,229.50

Step by Step Solution

1. Step 1: Write the proportion equation
   53,433 : 81,229.50 = 81,229.50 : x
2. Step 2: Convert to fraction form
   53,433/81,229.50 = 81,229.50/x
3. Step 3: Cross multiply
   53,433x = 81,229.50 × 81,229.50
4. Step 4: Simplify right side
   53,433x = 6,598,231,670.25
5. Step 5: Solve for x
   x = 6,598,231,670.25/53,433
6. Step 6: Final answer
   x = 123,486.08