Finding the Third Proportional to 619,192 and 1,264,624

Step by Step Solution

1. Step 1: Write the proportion equation
   619,192 : 1,264,624 = 1,264,624 : x
2. Step 2: Convert to fraction form
   619,192/1,264,624 = 1,264,624/x
3. Step 3: Cross multiply
   619,192x = 1,264,624 × 1,264,624
4. Step 4: Simplify right side
   619,192x = 1,599,273,861,376
5. Step 5: Solve for x
   x = 1,599,273,861,376/619,192
6. Step 6: Final answer
   x = 2,582,839.99