Finding the Third Proportional to 42,940 and 87,093

Step by Step Solution

1. Step 1: Write the proportion equation
   42,940 : 87,093 = 87,093 : x
2. Step 2: Convert to fraction form
   42,940/87,093 = 87,093/x
3. Step 3: Cross multiply
   42,940x = 87,093 × 87,093
4. Step 4: Simplify right side
   42,940x = 7,585,190,649
5. Step 5: Solve for x
   x = 7,585,190,649/42,940
6. Step 6: Final answer
   x = 176,646.27