Finding the Third Proportional to 1,215,156 and 2,659,058

Step by Step Solution

1. Step 1: Write the proportion equation
   1,215,156 : 2,659,058 = 2,659,058 : x
2. Step 2: Convert to fraction form
   1,215,156/2,659,058 = 2,659,058/x
3. Step 3: Cross multiply
   1,215,156x = 2,659,058 × 2,659,058
4. Step 4: Simplify right side
   1,215,156x = 7,070,589,447,364
5. Step 5: Solve for x
   x = 7,070,589,447,364/1,215,156
6. Step 6: Final answer
   x = 5,818,668.09