Finding the Third Proportional to 59,809.50 and 91,811.25

Step by Step Solution

1. Step 1: Write the proportion equation
   59,809.50 : 91,811.25 = 91,811.25 : x
2. Step 2: Convert to fraction form
   59,809.50/91,811.25 = 91,811.25/x
3. Step 3: Cross multiply
   59,809.50x = 91,811.25 × 91,811.25
4. Step 4: Simplify right side
   59,809.50x = 8,429,305,626.56
5. Step 5: Solve for x
   x = 8,429,305,626.56/59,809.50
6. Step 6: Final answer
   x = 140,935.90