Finding the Third Proportional to 149,609 and 327,830.50

Step by Step Solution

1. Step 1: Write the proportion equation
   149,609 : 327,830.50 = 327,830.50 : x
2. Step 2: Convert to fraction form
   149,609/327,830.50 = 327,830.50/x
3. Step 3: Cross multiply
   149,609x = 327,830.50 × 327,830.50
4. Step 4: Simplify right side
   149,609x = 107,472,836,730.25
5. Step 5: Solve for x
   x = 107,472,836,730.25/149,609
6. Step 6: Final answer
   x = 718,358.10