Finding the Third Proportional to 498,954.38 and 781,812

Step by Step Solution

1. Step 1: Write the proportion equation
   498,954.38 : 781,812 = 781,812 : x
2. Step 2: Convert to fraction form
   498,954.38/781,812 = 781,812/x
3. Step 3: Cross multiply
   498,954.38x = 781,812 × 781,812
4. Step 4: Simplify right side
   498,954.38x = 611,230,003,344
5. Step 5: Solve for x
   x = 611,230,003,344/498,954.38
6. Step 6: Final answer
   x = 1,225,021.83