Finding the Third Proportional to 42,392 and 80,928

Step by Step Solution

1. Step 1: Write the proportion equation
   42,392 : 80,928 = 80,928 : x
2. Step 2: Convert to fraction form
   42,392/80,928 = 80,928/x
3. Step 3: Cross multiply
   42,392x = 80,928 × 80,928
4. Step 4: Simplify right side
   42,392x = 6,549,341,184
5. Step 5: Solve for x
   x = 6,549,341,184/42,392
6. Step 6: Final answer
   x = 154,494.74