Finding the Third Proportional to 42,445,729 and 90,942,878

Step by Step Solution

1. Step 1: Write the proportion equation
   42,445,729 : 90,942,878 = 90,942,878 : x
2. Step 2: Convert to fraction form
   42,445,729/90,942,878 = 90,942,878/x
3. Step 3: Cross multiply
   42,445,729x = 90,942,878 × 90,942,878
4. Step 4: Simplify right side
   42,445,729x = 8,270,607,058,922,884
5. Step 5: Solve for x
   x = 8,270,607,058,922,884/42,445,729
6. Step 6: Final answer
   x = 194,851,337.31