Finding the Third Proportional to 17,990,780 and 38,854,074

Step by Step Solution

1. Step 1: Write the proportion equation
   17,990,780 : 38,854,074 = 38,854,074 : x
2. Step 2: Convert to fraction form
   17,990,780/38,854,074 = 38,854,074/x
3. Step 3: Cross multiply
   17,990,780x = 38,854,074 × 38,854,074
4. Step 4: Simplify right side
   17,990,780x = 1,509,639,066,397,476
5. Step 5: Solve for x
   x = 1,509,639,066,397,476/17,990,780
6. Step 6: Final answer
   x = 83,911,818.52