Finding the Third Proportional to 52,840 and 87,036

Step by Step Solution

1. Step 1: Write the proportion equation
   52,840 : 87,036 = 87,036 : x
2. Step 2: Convert to fraction form
   52,840/87,036 = 87,036/x
3. Step 3: Cross multiply
   52,840x = 87,036 × 87,036
4. Step 4: Simplify right side
   52,840x = 7,575,265,296
5. Step 5: Solve for x
   x = 7,575,265,296/52,840
6. Step 6: Final answer
   x = 143,362.33