Finding the Third Proportional to 272,340 and 632,857.50

Step by Step Solution

1. Step 1: Write the proportion equation
   272,340 : 632,857.50 = 632,857.50 : x
2. Step 2: Convert to fraction form
   272,340/632,857.50 = 632,857.50/x
3. Step 3: Cross multiply
   272,340x = 632,857.50 × 632,857.50
4. Step 4: Simplify right side
   272,340x = 400,508,615,306.25
5. Step 5: Solve for x
   x = 400,508,615,306.25/272,340
6. Step 6: Final answer
   x = 1,470,619.87