Finding the Third Proportional to 155,452.50 and 340,498.50

Step by Step Solution

1. Step 1: Write the proportion equation
   155,452.50 : 340,498.50 = 340,498.50 : x
2. Step 2: Convert to fraction form
   155,452.50/340,498.50 = 340,498.50/x
3. Step 3: Cross multiply
   155,452.50x = 340,498.50 × 340,498.50
4. Step 4: Simplify right side
   155,452.50x = 115,939,228,502.25
5. Step 5: Solve for x
   x = 115,939,228,502.25/155,452.50
6. Step 6: Final answer
   x = 745,817.72