Finding the Third Proportional to 49,400 and 71,412

Step by Step Solution

1. Step 1: Write the proportion equation
   49,400 : 71,412 = 71,412 : x
2. Step 2: Convert to fraction form
   49,400/71,412 = 71,412/x
3. Step 3: Cross multiply
   49,400x = 71,412 × 71,412
4. Step 4: Simplify right side
   49,400x = 5,099,673,744
5. Step 5: Solve for x
   x = 5,099,673,744/49,400
6. Step 6: Final answer
   x = 103,232.26