Finding the Third Proportional to 141,656 and 309,448

Step by Step Solution

1. Step 1: Write the proportion equation
   141,656 : 309,448 = 309,448 : x
2. Step 2: Convert to fraction form
   141,656/309,448 = 309,448/x
3. Step 3: Cross multiply
   141,656x = 309,448 × 309,448
4. Step 4: Simplify right side
   141,656x = 95,758,064,704
5. Step 5: Solve for x
   x = 95,758,064,704/141,656
6. Step 6: Final answer
   x = 675,990.18