Finding the Third Proportional to 599,416 and 1,309,280

Step by Step Solution

1. Step 1: Write the proportion equation
   599,416 : 1,309,280 = 1,309,280 : x
2. Step 2: Convert to fraction form
   599,416/1,309,280 = 1,309,280/x
3. Step 3: Cross multiply
   599,416x = 1,309,280 × 1,309,280
4. Step 4: Simplify right side
   599,416x = 1,714,214,118,400
5. Step 5: Solve for x
   x = 1,714,214,118,400/599,416
6. Step 6: Final answer
   x = 2,859,807.08