Finding the Third Proportional to 42,474.94 and 67,478.91

Step by Step Solution

1. Step 1: Write the proportion equation
   42,474.94 : 67,478.91 = 67,478.91 : x
2. Step 2: Convert to fraction form
   42,474.94/67,478.91 = 67,478.91/x
3. Step 3: Cross multiply
   42,474.94x = 67,478.91 × 67,478.91
4. Step 4: Simplify right side
   42,474.94x = 4,553,402,788.70
5. Step 5: Solve for x
   x = 4,553,402,788.70/42,474.94
6. Step 6: Final answer
   x = 107,202.11