Finding the Third Proportional to 61,460 and 87,042

Step by Step Solution

1. Step 1: Write the proportion equation
   61,460 : 87,042 = 87,042 : x
2. Step 2: Convert to fraction form
   61,460/87,042 = 87,042/x
3. Step 3: Cross multiply
   61,460x = 87,042 × 87,042
4. Step 4: Simplify right side
   61,460x = 7,576,309,764
5. Step 5: Solve for x
   x = 7,576,309,764/61,460
6. Step 6: Final answer
   x = 123,272.21