Finding the Third Proportional to 1,247,860 and 2,684,865

Step by Step Solution

1. Step 1: Write the proportion equation
   1,247,860 : 2,684,865 = 2,684,865 : x
2. Step 2: Convert to fraction form
   1,247,860/2,684,865 = 2,684,865/x
3. Step 3: Cross multiply
   1,247,860x = 2,684,865 × 2,684,865
4. Step 4: Simplify right side
   1,247,860x = 7,208,500,068,225
5. Step 5: Solve for x
   x = 7,208,500,068,225/1,247,860
6. Step 6: Final answer
   x = 5,776,689.75