Finding the Third Proportional to 2,129,124 and 4,536,972

Step by Step Solution

1. Step 1: Write the proportion equation
   2,129,124 : 4,536,972 = 4,536,972 : x
2. Step 2: Convert to fraction form
   2,129,124/4,536,972 = 4,536,972/x
3. Step 3: Cross multiply
   2,129,124x = 4,536,972 × 4,536,972
4. Step 4: Simplify right side
   2,129,124x = 20,584,114,928,784
5. Step 5: Solve for x
   x = 20,584,114,928,784/2,129,124
6. Step 6: Final answer
   x = 9,667,879.81