Finding the Third Proportional to 314,499 and 679,053

Step by Step Solution

1. Step 1: Write the proportion equation
   314,499 : 679,053 = 679,053 : x
2. Step 2: Convert to fraction form
   314,499/679,053 = 679,053/x
3. Step 3: Cross multiply
   314,499x = 679,053 × 679,053
4. Step 4: Simplify right side
   314,499x = 461,112,976,809
5. Step 5: Solve for x
   x = 461,112,976,809/314,499
6. Step 6: Final answer
   x = 1,466,182.65