Finding the Third Proportional to 642,350 and 1,383,358

Step by Step Solution

1. Step 1: Write the proportion equation
   642,350 : 1,383,358 = 1,383,358 : x
2. Step 2: Convert to fraction form
   642,350/1,383,358 = 1,383,358/x
3. Step 3: Cross multiply
   642,350x = 1,383,358 × 1,383,358
4. Step 4: Simplify right side
   642,350x = 1,913,679,356,164
5. Step 5: Solve for x
   x = 1,913,679,356,164/642,350
6. Step 6: Final answer
   x = 2,979,184.80