Finding the Third Proportional to 1,215,114 and 2,658,980

Step by Step Solution

1. Step 1: Write the proportion equation
   1,215,114 : 2,658,980 = 2,658,980 : x
2. Step 2: Convert to fraction form
   1,215,114/2,658,980 = 2,658,980/x
3. Step 3: Cross multiply
   1,215,114x = 2,658,980 × 2,658,980
4. Step 4: Simplify right side
   1,215,114x = 7,070,174,640,400
5. Step 5: Solve for x
   x = 7,070,174,640,400/1,215,114
6. Step 6: Final answer
   x = 5,818,527.84