Finding the Third Proportional to 156,112 and 338,470

Step by Step Solution

1. Step 1: Write the proportion equation
   156,112 : 338,470 = 338,470 : x
2. Step 2: Convert to fraction form
   156,112/338,470 = 338,470/x
3. Step 3: Cross multiply
   156,112x = 338,470 × 338,470
4. Step 4: Simplify right side
   156,112x = 114,561,940,900
5. Step 5: Solve for x
   x = 114,561,940,900/156,112
6. Step 6: Final answer
   x = 733,844.55