Finding the Third Proportional to 141,620 and 309,004

Step by Step Solution

1. Step 1: Write the proportion equation
   141,620 : 309,004 = 309,004 : x
2. Step 2: Convert to fraction form
   141,620/309,004 = 309,004/x
3. Step 3: Cross multiply
   141,620x = 309,004 × 309,004
4. Step 4: Simplify right side
   141,620x = 95,483,472,016
5. Step 5: Solve for x
   x = 95,483,472,016/141,620
6. Step 6: Final answer
   x = 674,223.08