Finding the Third Proportional to 74,737.69 and 161,215.31

Step by Step Solution

1. Step 1: Write the proportion equation
   74,737.69 : 161,215.31 = 161,215.31 : x
2. Step 2: Convert to fraction form
   74,737.69/161,215.31 = 161,215.31/x
3. Step 3: Cross multiply
   74,737.69x = 161,215.31 × 161,215.31
4. Step 4: Simplify right side
   74,737.69x = 25,990,376,984.47
5. Step 5: Solve for x
   x = 25,990,376,984.47/74,737.69
6. Step 6: Final answer
   x = 347,754.63