Finding the Third Proportional to 42,724 and 59,918

Step by Step Solution

1. Step 1: Write the proportion equation
   42,724 : 59,918 = 59,918 : x
2. Step 2: Convert to fraction form
   42,724/59,918 = 59,918/x
3. Step 3: Cross multiply
   42,724x = 59,918 × 59,918
4. Step 4: Simplify right side
   42,724x = 3,590,166,724
5. Step 5: Solve for x
   x = 3,590,166,724/42,724
6. Step 6: Final answer
   x = 84,031.62