Finding the Third Proportional to 1,187,866 and 2,600,216

Step by Step Solution

1. Step 1: Write the proportion equation
   1,187,866 : 2,600,216 = 2,600,216 : x
2. Step 2: Convert to fraction form
   1,187,866/2,600,216 = 2,600,216/x
3. Step 3: Cross multiply
   1,187,866x = 2,600,216 × 2,600,216
4. Step 4: Simplify right side
   1,187,866x = 6,761,123,246,656
5. Step 5: Solve for x
   x = 6,761,123,246,656/1,187,866
6. Step 6: Final answer
   x = 5,691,823.19