Finding the Third Proportional to 3,637,859 and 7,921,572

Step by Step Solution

1. Step 1: Write the proportion equation
   3,637,859 : 7,921,572 = 7,921,572 : x
2. Step 2: Convert to fraction form
   3,637,859/7,921,572 = 7,921,572/x
3. Step 3: Cross multiply
   3,637,859x = 7,921,572 × 7,921,572
4. Step 4: Simplify right side
   3,637,859x = 62,751,302,951,184
5. Step 5: Solve for x
   x = 62,751,302,951,184/3,637,859
6. Step 6: Final answer
   x = 17,249,514.88