Finding the Third Proportional to 562,116 and 1,218,288

Step by Step Solution

1. Step 1: Write the proportion equation
   562,116 : 1,218,288 = 1,218,288 : x
2. Step 2: Convert to fraction form
   562,116/1,218,288 = 1,218,288/x
3. Step 3: Cross multiply
   562,116x = 1,218,288 × 1,218,288
4. Step 4: Simplify right side
   562,116x = 1,484,225,650,944
5. Step 5: Solve for x
   x = 1,484,225,650,944/562,116
6. Step 6: Final answer
   x = 2,640,425.91