Finding the Third Proportional to 2,132,139 and 4,618,572

Step by Step Solution

1. Step 1: Write the proportion equation
   2,132,139 : 4,618,572 = 4,618,572 : x
2. Step 2: Convert to fraction form
   2,132,139/4,618,572 = 4,618,572/x
3. Step 3: Cross multiply
   2,132,139x = 4,618,572 × 4,618,572
4. Step 4: Simplify right side
   2,132,139x = 21,331,207,319,184
5. Step 5: Solve for x
   x = 21,331,207,319,184/2,132,139
6. Step 6: Final answer
   x = 10,004,604.45