Finding the Third Proportional to 42,017,778 and 91,397,484

Step by Step Solution

1. Step 1: Write the proportion equation
   42,017,778 : 91,397,484 = 91,397,484 : x
2. Step 2: Convert to fraction form
   42,017,778/91,397,484 = 91,397,484/x
3. Step 3: Cross multiply
   42,017,778x = 91,397,484 × 91,397,484
4. Step 4: Simplify right side
   42,017,778x = 8,353,500,081,530,256
5. Step 5: Solve for x
   x = 8,353,500,081,530,256/42,017,778
6. Step 6: Final answer
   x = 198,808,706.20