Finding the Third Proportional to 142,776 and 337,608

Step by Step Solution

1. Step 1: Write the proportion equation
   142,776 : 337,608 = 337,608 : x
2. Step 2: Convert to fraction form
   142,776/337,608 = 337,608/x
3. Step 3: Cross multiply
   142,776x = 337,608 × 337,608
4. Step 4: Simplify right side
   142,776x = 113,979,161,664
5. Step 5: Solve for x
   x = 113,979,161,664/142,776
6. Step 6: Final answer
   x = 798,307.57