Finding the Third Proportional to 653,638 and 1,407,374

Step by Step Solution

1. Step 1: Write the proportion equation
   653,638 : 1,407,374 = 1,407,374 : x
2. Step 2: Convert to fraction form
   653,638/1,407,374 = 1,407,374/x
3. Step 3: Cross multiply
   653,638x = 1,407,374 × 1,407,374
4. Step 4: Simplify right side
   653,638x = 1,980,701,575,876
5. Step 5: Solve for x
   x = 1,980,701,575,876/653,638
6. Step 6: Final answer
   x = 3,030,272.99