Finding the Third Proportional to 141,656 and 309,070

Step by Step Solution

1. Step 1: Write the proportion equation
   141,656 : 309,070 = 309,070 : x
2. Step 2: Convert to fraction form
   141,656/309,070 = 309,070/x
3. Step 3: Cross multiply
   141,656x = 309,070 × 309,070
4. Step 4: Simplify right side
   141,656x = 95,524,264,900
5. Step 5: Solve for x
   x = 95,524,264,900/141,656
6. Step 6: Final answer
   x = 674,339.70