Finding the Third Proportional to 42,474 and 67,477.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,474 : 67,477.50 = 67,477.50 : x
2. Step 2: Convert to fraction form
   42,474/67,477.50 = 67,477.50/x
3. Step 3: Cross multiply
   42,474x = 67,477.50 × 67,477.50
4. Step 4: Simplify right side
   42,474x = 4,553,213,006.25
5. Step 5: Solve for x
   x = 4,553,213,006.25/42,474
6. Step 6: Final answer
   x = 107,200.00