Finding the Third Proportional to 3,637,861 and 7,921,576

Step by Step Solution

1. Step 1: Write the proportion equation
   3,637,861 : 7,921,576 = 7,921,576 : x
2. Step 2: Convert to fraction form
   3,637,861/7,921,576 = 7,921,576/x
3. Step 3: Cross multiply
   3,637,861x = 7,921,576 × 7,921,576
4. Step 4: Simplify right side
   3,637,861x = 62,751,366,323,776
5. Step 5: Solve for x
   x = 62,751,366,323,776/3,637,861
6. Step 6: Final answer
   x = 17,249,522.82