Finding the Third Proportional to 49,344.19 and 71,221.78

Step by Step Solution

1. Step 1: Write the proportion equation
   49,344.19 : 71,221.78 = 71,221.78 : x
2. Step 2: Convert to fraction form
   49,344.19/71,221.78 = 71,221.78/x
3. Step 3: Cross multiply
   49,344.19x = 71,221.78 × 71,221.78
4. Step 4: Simplify right side
   49,344.19x = 5,072,542,124.42
5. Step 5: Solve for x
   x = 5,072,542,124.42/49,344.19
6. Step 6: Final answer
   x = 102,799.18