Finding the Third Proportional to 7,990,468 and 17,609,644

Step by Step Solution

1. Step 1: Write the proportion equation
   7,990,468 : 17,609,644 = 17,609,644 : x
2. Step 2: Convert to fraction form
   7,990,468/17,609,644 = 17,609,644/x
3. Step 3: Cross multiply
   7,990,468x = 17,609,644 × 17,609,644
4. Step 4: Simplify right side
   7,990,468x = 310,099,561,806,736
5. Step 5: Solve for x
   x = 310,099,561,806,736/7,990,468
6. Step 6: Final answer
   x = 38,808,685.77