Finding the Third Proportional to 45,707.50 and 69,443.50

Step by Step Solution

1. Step 1: Write the proportion equation
   45,707.50 : 69,443.50 = 69,443.50 : x
2. Step 2: Convert to fraction form
   45,707.50/69,443.50 = 69,443.50/x
3. Step 3: Cross multiply
   45,707.50x = 69,443.50 × 69,443.50
4. Step 4: Simplify right side
   45,707.50x = 4,822,399,692.25
5. Step 5: Solve for x
   x = 4,822,399,692.25/45,707.50
6. Step 6: Final answer
   x = 105,505.65