Finding the Third Proportional to 211,018.50 and 488,088

Step by Step Solution

1. Step 1: Write the proportion equation
   211,018.50 : 488,088 = 488,088 : x
2. Step 2: Convert to fraction form
   211,018.50/488,088 = 488,088/x
3. Step 3: Cross multiply
   211,018.50x = 488,088 × 488,088
4. Step 4: Simplify right side
   211,018.50x = 238,229,895,744
5. Step 5: Solve for x
   x = 238,229,895,744/211,018.50
6. Step 6: Final answer
   x = 1,128,952.65