Finding the Third Proportional to 156,726 and 338,386

Step by Step Solution

1. Step 1: Write the proportion equation
   156,726 : 338,386 = 338,386 : x
2. Step 2: Convert to fraction form
   156,726/338,386 = 338,386/x
3. Step 3: Cross multiply
   156,726x = 338,386 × 338,386
4. Step 4: Simplify right side
   156,726x = 114,505,084,996
5. Step 5: Solve for x
   x = 114,505,084,996/156,726
6. Step 6: Final answer
   x = 730,606.82