Finding the Third Proportional to 163,085.59 and 337,358.20

Step by Step Solution

1. Step 1: Write the proportion equation
   163,085.59 : 337,358.20 = 337,358.20 : x
2. Step 2: Convert to fraction form
   163,085.59/337,358.20 = 337,358.20/x
3. Step 3: Cross multiply
   163,085.59x = 337,358.20 × 337,358.20
4. Step 4: Simplify right side
   163,085.59x = 113,810,553,262.31
5. Step 5: Solve for x
   x = 113,810,553,262.31/163,085.59
6. Step 6: Final answer
   x = 697,857.81