Finding the Third Proportional to 63,788.50 and 91,308.50

Step by Step Solution

1. Step 1: Write the proportion equation
   63,788.50 : 91,308.50 = 91,308.50 : x
2. Step 2: Convert to fraction form
   63,788.50/91,308.50 = 91,308.50/x
3. Step 3: Cross multiply
   63,788.50x = 91,308.50 × 91,308.50
4. Step 4: Simplify right side
   63,788.50x = 8,337,242,172.25
5. Step 5: Solve for x
   x = 8,337,242,172.25/63,788.50
6. Step 6: Final answer
   x = 130,701.34