Finding the Third Proportional to 119,020.50 and 259,407

Step by Step Solution

1. Step 1: Write the proportion equation
   119,020.50 : 259,407 = 259,407 : x
2. Step 2: Convert to fraction form
   119,020.50/259,407 = 259,407/x
3. Step 3: Cross multiply
   119,020.50x = 259,407 × 259,407
4. Step 4: Simplify right side
   119,020.50x = 67,291,991,649
5. Step 5: Solve for x
   x = 67,291,991,649/119,020.50
6. Step 6: Final answer
   x = 565,381.52