Finding the Third Proportional to 53,332.50 and 85,912.50

Step by Step Solution

1. Step 1: Write the proportion equation
   53,332.50 : 85,912.50 = 85,912.50 : x
2. Step 2: Convert to fraction form
   53,332.50/85,912.50 = 85,912.50/x
3. Step 3: Cross multiply
   53,332.50x = 85,912.50 × 85,912.50
4. Step 4: Simplify right side
   53,332.50x = 7,380,957,656.25
5. Step 5: Solve for x
   x = 7,380,957,656.25/53,332.50
6. Step 6: Final answer
   x = 138,395.12