Finding the Third Proportional to 1,399,077 and 2,990,124

Step by Step Solution

1. Step 1: Write the proportion equation
   1,399,077 : 2,990,124 = 2,990,124 : x
2. Step 2: Convert to fraction form
   1,399,077/2,990,124 = 2,990,124/x
3. Step 3: Cross multiply
   1,399,077x = 2,990,124 × 2,990,124
4. Step 4: Simplify right side
   1,399,077x = 8,940,841,535,376
5. Step 5: Solve for x
   x = 8,940,841,535,376/1,399,077
6. Step 6: Final answer
   x = 6,390,528.57