Finding the Third Proportional to 647,794 and 1,423,124

Step by Step Solution

1. Step 1: Write the proportion equation
   647,794 : 1,423,124 = 1,423,124 : x
2. Step 2: Convert to fraction form
   647,794/1,423,124 = 1,423,124/x
3. Step 3: Cross multiply
   647,794x = 1,423,124 × 1,423,124
4. Step 4: Simplify right side
   647,794x = 2,025,281,919,376
5. Step 5: Solve for x
   x = 2,025,281,919,376/647,794
6. Step 6: Final answer
   x = 3,126,428.96