Finding the Third Proportional to 42,549 and 90,480

Step by Step Solution

1. Step 1: Write the proportion equation
   42,549 : 90,480 = 90,480 : x
2. Step 2: Convert to fraction form
   42,549/90,480 = 90,480/x
3. Step 3: Cross multiply
   42,549x = 90,480 × 90,480
4. Step 4: Simplify right side
   42,549x = 8,186,630,400
5. Step 5: Solve for x
   x = 8,186,630,400/42,549
6. Step 6: Final answer
   x = 192,404.77