Finding the Third Proportional to 1,221,236 and 2,610,536

Step by Step Solution

1. Step 1: Write the proportion equation
   1,221,236 : 2,610,536 = 2,610,536 : x
2. Step 2: Convert to fraction form
   1,221,236/2,610,536 = 2,610,536/x
3. Step 3: Cross multiply
   1,221,236x = 2,610,536 × 2,610,536
4. Step 4: Simplify right side
   1,221,236x = 6,814,898,207,296
5. Step 5: Solve for x
   x = 6,814,898,207,296/1,221,236
6. Step 6: Final answer
   x = 5,580,328.62