Finding the Third Proportional to 680,242 and 1,478,582

Step by Step Solution

1. Step 1: Write the proportion equation
   680,242 : 1,478,582 = 1,478,582 : x
2. Step 2: Convert to fraction form
   680,242/1,478,582 = 1,478,582/x
3. Step 3: Cross multiply
   680,242x = 1,478,582 × 1,478,582
4. Step 4: Simplify right side
   680,242x = 2,186,204,730,724
5. Step 5: Solve for x
   x = 2,186,204,730,724/680,242
6. Step 6: Final answer
   x = 3,213,863.20