Finding the Third Proportional to 149,340 and 322,429.50

Step by Step Solution

1. Step 1: Write the proportion equation
   149,340 : 322,429.50 = 322,429.50 : x
2. Step 2: Convert to fraction form
   149,340/322,429.50 = 322,429.50/x
3. Step 3: Cross multiply
   149,340x = 322,429.50 × 322,429.50
4. Step 4: Simplify right side
   149,340x = 103,960,782,470.25
5. Step 5: Solve for x
   x = 103,960,782,470.25/149,340
6. Step 6: Final answer
   x = 696,134.88