Finding the Third Proportional to 78,124.50 and 161,787.38

Step by Step Solution

1. Step 1: Write the proportion equation
   78,124.50 : 161,787.38 = 161,787.38 : x
2. Step 2: Convert to fraction form
   78,124.50/161,787.38 = 161,787.38/x
3. Step 3: Cross multiply
   78,124.50x = 161,787.38 × 161,787.38
4. Step 4: Simplify right side
   78,124.50x = 26,175,154,709.39
5. Step 5: Solve for x
   x = 26,175,154,709.39/78,124.50
6. Step 6: Final answer
   x = 335,044.12