Finding the Third Proportional to 56,950.50 and 86,830.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,950.50 : 86,830.50 = 86,830.50 : x
2. Step 2: Convert to fraction form
   56,950.50/86,830.50 = 86,830.50/x
3. Step 3: Cross multiply
   56,950.50x = 86,830.50 × 86,830.50
4. Step 4: Simplify right side
   56,950.50x = 7,539,535,730.25
5. Step 5: Solve for x
   x = 7,539,535,730.25/56,950.50
6. Step 6: Final answer
   x = 132,387.52