Finding the Third Proportional to 342,330 and 736,255.50

Step by Step Solution

1. Step 1: Write the proportion equation
   342,330 : 736,255.50 = 736,255.50 : x
2. Step 2: Convert to fraction form
   342,330/736,255.50 = 736,255.50/x
3. Step 3: Cross multiply
   342,330x = 736,255.50 × 736,255.50
4. Step 4: Simplify right side
   342,330x = 542,072,161,280.25
5. Step 5: Solve for x
   x = 542,072,161,280.25/342,330
6. Step 6: Final answer
   x = 1,583,478.40