Finding the Third Proportional to 20,979,328 and 32,400,816

Step by Step Solution

1. Step 1: Write the proportion equation
   20,979,328 : 32,400,816 = 32,400,816 : x
2. Step 2: Convert to fraction form
   20,979,328/32,400,816 = 32,400,816/x
3. Step 3: Cross multiply
   20,979,328x = 32,400,816 × 32,400,816
4. Step 4: Simplify right side
   20,979,328x = 1,049,812,877,465,856
5. Step 5: Solve for x
   x = 1,049,812,877,465,856/20,979,328
6. Step 6: Final answer
   x = 50,040,348.17