Finding the Third Proportional to 42,000 and 90,777

Step by Step Solution

1. Step 1: Write the proportion equation
   42,000 : 90,777 = 90,777 : x
2. Step 2: Convert to fraction form
   42,000/90,777 = 90,777/x
3. Step 3: Cross multiply
   42,000x = 90,777 × 90,777
4. Step 4: Simplify right side
   42,000x = 8,240,463,729
5. Step 5: Solve for x
   x = 8,240,463,729/42,000
6. Step 6: Final answer
   x = 196,201.52