Finding the Third Proportional to 63,787.50 and 91,307.25

Step by Step Solution

1. Step 1: Write the proportion equation
   63,787.50 : 91,307.25 = 91,307.25 : x
2. Step 2: Convert to fraction form
   63,787.50/91,307.25 = 91,307.25/x
3. Step 3: Cross multiply
   63,787.50x = 91,307.25 × 91,307.25
4. Step 4: Simplify right side
   63,787.50x = 8,337,013,902.56
5. Step 5: Solve for x
   x = 8,337,013,902.56/63,787.50
6. Step 6: Final answer
   x = 130,699.81