Finding the Third Proportional to 42,520 and 87,992

Step by Step Solution

1. Step 1: Write the proportion equation
   42,520 : 87,992 = 87,992 : x
2. Step 2: Convert to fraction form
   42,520/87,992 = 87,992/x
3. Step 3: Cross multiply
   42,520x = 87,992 × 87,992
4. Step 4: Simplify right side
   42,520x = 7,742,592,064
5. Step 5: Solve for x
   x = 7,742,592,064/42,520
6. Step 6: Final answer
   x = 182,092.95