Finding the Third Proportional to 55,708.50 and 91,450.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,708.50 : 91,450.50 = 91,450.50 : x
2. Step 2: Convert to fraction form
   55,708.50/91,450.50 = 91,450.50/x
3. Step 3: Cross multiply
   55,708.50x = 91,450.50 × 91,450.50
4. Step 4: Simplify right side
   55,708.50x = 8,363,193,950.25
5. Step 5: Solve for x
   x = 8,363,193,950.25/55,708.50
6. Step 6: Final answer
   x = 150,124.20