Finding the Third Proportional to 677,280 and 1,488,264

Step by Step Solution

1. Step 1: Write the proportion equation
   677,280 : 1,488,264 = 1,488,264 : x
2. Step 2: Convert to fraction form
   677,280/1,488,264 = 1,488,264/x
3. Step 3: Cross multiply
   677,280x = 1,488,264 × 1,488,264
4. Step 4: Simplify right side
   677,280x = 2,214,929,733,696
5. Step 5: Solve for x
   x = 2,214,929,733,696/677,280
6. Step 6: Final answer
   x = 3,270,330.93