Finding the Third Proportional to 619,348 and 917,510

Step by Step Solution

1. Step 1: Write the proportion equation
   619,348 : 917,510 = 917,510 : x
2. Step 2: Convert to fraction form
   619,348/917,510 = 917,510/x
3. Step 3: Cross multiply
   619,348x = 917,510 × 917,510
4. Step 4: Simplify right side
   619,348x = 841,824,600,100
5. Step 5: Solve for x
   x = 841,824,600,100/619,348
6. Step 6: Final answer
   x = 1,359,210.98