Finding the Third Proportional to 42,445,642 and 90,942,704

Step by Step Solution

1. Step 1: Write the proportion equation
   42,445,642 : 90,942,704 = 90,942,704 : x
2. Step 2: Convert to fraction form
   42,445,642/90,942,704 = 90,942,704/x
3. Step 3: Cross multiply
   42,445,642x = 90,942,704 × 90,942,704
4. Step 4: Simplify right side
   42,445,642x = 8,270,575,410,831,616
5. Step 5: Solve for x
   x = 8,270,575,410,831,616/42,445,642
6. Step 6: Final answer
   x = 194,850,991.08