Finding the Third Proportional to 626,434 and 1,341,428

Step by Step Solution

1. Step 1: Write the proportion equation
   626,434 : 1,341,428 = 1,341,428 : x
2. Step 2: Convert to fraction form
   626,434/1,341,428 = 1,341,428/x
3. Step 3: Cross multiply
   626,434x = 1,341,428 × 1,341,428
4. Step 4: Simplify right side
   626,434x = 1,799,429,079,184
5. Step 5: Solve for x
   x = 1,799,429,079,184/626,434
6. Step 6: Final answer
   x = 2,872,495.87