Finding the Third Proportional to 137,718 and 301,643

Step by Step Solution

1. Step 1: Write the proportion equation
   137,718 : 301,643 = 301,643 : x
2. Step 2: Convert to fraction form
   137,718/301,643 = 301,643/x
3. Step 3: Cross multiply
   137,718x = 301,643 × 301,643
4. Step 4: Simplify right side
   137,718x = 90,988,499,449
5. Step 5: Solve for x
   x = 90,988,499,449/137,718
6. Step 6: Final answer
   x = 660,687.05