Finding the Third Proportional to 119,857.50 and 263,043

Step by Step Solution

1. Step 1: Write the proportion equation
   119,857.50 : 263,043 = 263,043 : x
2. Step 2: Convert to fraction form
   119,857.50/263,043 = 263,043/x
3. Step 3: Cross multiply
   119,857.50x = 263,043 × 263,043
4. Step 4: Simplify right side
   119,857.50x = 69,191,619,849
5. Step 5: Solve for x
   x = 69,191,619,849/119,857.50
6. Step 6: Final answer
   x = 577,282.35