Finding the Third Proportional to 42,392.50 and 67,480.75

Step by Step Solution

1. Step 1: Write the proportion equation
   42,392.50 : 67,480.75 = 67,480.75 : x
2. Step 2: Convert to fraction form
   42,392.50/67,480.75 = 67,480.75/x
3. Step 3: Cross multiply
   42,392.50x = 67,480.75 × 67,480.75
4. Step 4: Simplify right side
   42,392.50x = 4,553,651,620.56
5. Step 5: Solve for x
   x = 4,553,651,620.56/42,392.50
6. Step 6: Final answer
   x = 107,416.44