Finding the Third Proportional to 626,430 and 1,341,420

Step by Step Solution

1. Step 1: Write the proportion equation
   626,430 : 1,341,420 = 1,341,420 : x
2. Step 2: Convert to fraction form
   626,430/1,341,420 = 1,341,420/x
3. Step 3: Cross multiply
   626,430x = 1,341,420 × 1,341,420
4. Step 4: Simplify right side
   626,430x = 1,799,407,616,400
5. Step 5: Solve for x
   x = 1,799,407,616,400/626,430
6. Step 6: Final answer
   x = 2,872,479.95