Finding the Third Proportional to 155,539.50 and 340,650

Step by Step Solution

1. Step 1: Write the proportion equation
   155,539.50 : 340,650 = 340,650 : x
2. Step 2: Convert to fraction form
   155,539.50/340,650 = 340,650/x
3. Step 3: Cross multiply
   155,539.50x = 340,650 × 340,650
4. Step 4: Simplify right side
   155,539.50x = 116,042,422,500
5. Step 5: Solve for x
   x = 116,042,422,500/155,539.50
6. Step 6: Final answer
   x = 746,064.01