Finding the Third Proportional to 384,966 and 812,060

Step by Step Solution

1. Step 1: Write the proportion equation
   384,966 : 812,060 = 812,060 : x
2. Step 2: Convert to fraction form
   384,966/812,060 = 812,060/x
3. Step 3: Cross multiply
   384,966x = 812,060 × 812,060
4. Step 4: Simplify right side
   384,966x = 659,441,443,600
5. Step 5: Solve for x
   x = 659,441,443,600/384,966
6. Step 6: Final answer
   x = 1,712,986.20