Finding the Third Proportional to 2,138,524 and 4,453,972

Step by Step Solution

1. Step 1: Write the proportion equation
   2,138,524 : 4,453,972 = 4,453,972 : x
2. Step 2: Convert to fraction form
   2,138,524/4,453,972 = 4,453,972/x
3. Step 3: Cross multiply
   2,138,524x = 4,453,972 × 4,453,972
4. Step 4: Simplify right side
   2,138,524x = 19,837,866,576,784
5. Step 5: Solve for x
   x = 19,837,866,576,784/2,138,524
6. Step 6: Final answer
   x = 9,276,429.25