Finding the Third Proportional to 1,187,190 and 2,639,916

Step by Step Solution

1. Step 1: Write the proportion equation
   1,187,190 : 2,639,916 = 2,639,916 : x
2. Step 2: Convert to fraction form
   1,187,190/2,639,916 = 2,639,916/x
3. Step 3: Cross multiply
   1,187,190x = 2,639,916 × 2,639,916
4. Step 4: Simplify right side
   1,187,190x = 6,969,156,487,056
5. Step 5: Solve for x
   x = 6,969,156,487,056/1,187,190
6. Step 6: Final answer
   x = 5,870,295.81