Finding the Third Proportional to 615,604 and 1,280,132

Step by Step Solution

1. Step 1: Write the proportion equation
   615,604 : 1,280,132 = 1,280,132 : x
2. Step 2: Convert to fraction form
   615,604/1,280,132 = 1,280,132/x
3. Step 3: Cross multiply
   615,604x = 1,280,132 × 1,280,132
4. Step 4: Simplify right side
   615,604x = 1,638,737,937,424
5. Step 5: Solve for x
   x = 1,638,737,937,424/615,604
6. Step 6: Final answer
   x = 2,662,000.15