Finding the Third Proportional to 342,216 and 763,042.50

Step by Step Solution

1. Step 1: Write the proportion equation
   342,216 : 763,042.50 = 763,042.50 : x
2. Step 2: Convert to fraction form
   342,216/763,042.50 = 763,042.50/x
3. Step 3: Cross multiply
   342,216x = 763,042.50 × 763,042.50
4. Step 4: Simplify right side
   342,216x = 582,233,856,806.25
5. Step 5: Solve for x
   x = 582,233,856,806.25/342,216
6. Step 6: Final answer
   x = 1,701,363.63