Finding the Third Proportional to 63,789.50 and 91,310

Step by Step Solution

1. Step 1: Write the proportion equation
   63,789.50 : 91,310 = 91,310 : x
2. Step 2: Convert to fraction form
   63,789.50/91,310 = 91,310/x
3. Step 3: Cross multiply
   63,789.50x = 91,310 × 91,310
4. Step 4: Simplify right side
   63,789.50x = 8,337,516,100
5. Step 5: Solve for x
   x = 8,337,516,100/63,789.50
6. Step 6: Final answer
   x = 130,703.58