Finding the Third Proportional to 59,272 and 139,910

Step by Step Solution

1. Step 1: Write the proportion equation
   59,272 : 139,910 = 139,910 : x
2. Step 2: Convert to fraction form
   59,272/139,910 = 139,910/x
3. Step 3: Cross multiply
   59,272x = 139,910 × 139,910
4. Step 4: Simplify right side
   59,272x = 19,574,808,100
5. Step 5: Solve for x
   x = 19,574,808,100/59,272
6. Step 6: Final answer
   x = 330,253.88