Finding the Third Proportional to 59,790 and 137,808

Step by Step Solution

1. Step 1: Write the proportion equation
   59,790 : 137,808 = 137,808 : x
2. Step 2: Convert to fraction form
   59,790/137,808 = 137,808/x
3. Step 3: Cross multiply
   59,790x = 137,808 × 137,808
4. Step 4: Simplify right side
   59,790x = 18,991,044,864
5. Step 5: Solve for x
   x = 18,991,044,864/59,790
6. Step 6: Final answer
   x = 317,629.12