Finding the Third Proportional to 162,638.30 and 352,426.78

Step by Step Solution

1. Step 1: Write the proportion equation
   162,638.30 : 352,426.78 = 352,426.78 : x
2. Step 2: Convert to fraction form
   162,638.30/352,426.78 = 352,426.78/x
3. Step 3: Cross multiply
   162,638.30x = 352,426.78 × 352,426.78
4. Step 4: Simplify right side
   162,638.30x = 124,204,636,142.24
5. Step 5: Solve for x
   x = 124,204,636,142.24/162,638.30
6. Step 6: Final answer
   x = 763,686.28