Finding the Third Proportional to 57,701.25 and 91,290.50

Step by Step Solution

1. Step 1: Write the proportion equation
   57,701.25 : 91,290.50 = 91,290.50 : x
2. Step 2: Convert to fraction form
   57,701.25/91,290.50 = 91,290.50/x
3. Step 3: Cross multiply
   57,701.25x = 91,290.50 × 91,290.50
4. Step 4: Simplify right side
   57,701.25x = 8,333,955,390.25
5. Step 5: Solve for x
   x = 8,333,955,390.25/57,701.25
6. Step 6: Final answer
   x = 144,432.84