Finding the Third Proportional to 42,445,728 and 90,942,876

Step by Step Solution

1. Step 1: Write the proportion equation
   42,445,728 : 90,942,876 = 90,942,876 : x
2. Step 2: Convert to fraction form
   42,445,728/90,942,876 = 90,942,876/x
3. Step 3: Cross multiply
   42,445,728x = 90,942,876 × 90,942,876
4. Step 4: Simplify right side
   42,445,728x = 8,270,606,695,151,376
5. Step 5: Solve for x
   x = 8,270,606,695,151,376/42,445,728
6. Step 6: Final answer
   x = 194,851,333.33