Finding the Third Proportional to 42,135.19 and 90,466.88

Step by Step Solution

1. Step 1: Write the proportion equation
   42,135.19 : 90,466.88 = 90,466.88 : x
2. Step 2: Convert to fraction form
   42,135.19/90,466.88 = 90,466.88/x
3. Step 3: Cross multiply
   42,135.19x = 90,466.88 × 90,466.88
4. Step 4: Simplify right side
   42,135.19x = 8,184,255,472.27
5. Step 5: Solve for x
   x = 8,184,255,472.27/42,135.19
6. Step 6: Final answer
   x = 194,238.02