Finding the Third Proportional to 155,439 and 240,025.50

Step by Step Solution

1. Step 1: Write the proportion equation
   155,439 : 240,025.50 = 240,025.50 : x
2. Step 2: Convert to fraction form
   155,439/240,025.50 = 240,025.50/x
3. Step 3: Cross multiply
   155,439x = 240,025.50 × 240,025.50
4. Step 4: Simplify right side
   155,439x = 57,612,240,650.25
5. Step 5: Solve for x
   x = 57,612,240,650.25/155,439
6. Step 6: Final answer
   x = 370,642.12