Finding the Third Proportional to 342,025.50 and 749,722.50

Step by Step Solution

1. Step 1: Write the proportion equation
   342,025.50 : 749,722.50 = 749,722.50 : x
2. Step 2: Convert to fraction form
   342,025.50/749,722.50 = 749,722.50/x
3. Step 3: Cross multiply
   342,025.50x = 749,722.50 × 749,722.50
4. Step 4: Simplify right side
   342,025.50x = 562,083,827,006.25
5. Step 5: Solve for x
   x = 562,083,827,006.25/342,025.50
6. Step 6: Final answer
   x = 1,643,397.43