Finding the Third Proportional to 142,718 and 337,516

Step by Step Solution

1. Step 1: Write the proportion equation
   142,718 : 337,516 = 337,516 : x
2. Step 2: Convert to fraction form
   142,718/337,516 = 337,516/x
3. Step 3: Cross multiply
   142,718x = 337,516 × 337,516
4. Step 4: Simplify right side
   142,718x = 113,917,050,256
5. Step 5: Solve for x
   x = 113,917,050,256/142,718
6. Step 6: Final answer
   x = 798,196.80