Finding the Third Proportional to 53,764.50 and 83,418.75

Step by Step Solution

1. Step 1: Write the proportion equation
   53,764.50 : 83,418.75 = 83,418.75 : x
2. Step 2: Convert to fraction form
   53,764.50/83,418.75 = 83,418.75/x
3. Step 3: Cross multiply
   53,764.50x = 83,418.75 × 83,418.75
4. Step 4: Simplify right side
   53,764.50x = 6,958,687,851.56
5. Step 5: Solve for x
   x = 6,958,687,851.56/53,764.50
6. Step 6: Final answer
   x = 129,429.04