Finding the Third Proportional to 211,017 and 488,084.50

Step by Step Solution

1. Step 1: Write the proportion equation
   211,017 : 488,084.50 = 488,084.50 : x
2. Step 2: Convert to fraction form
   211,017/488,084.50 = 488,084.50/x
3. Step 3: Cross multiply
   211,017x = 488,084.50 × 488,084.50
4. Step 4: Simplify right side
   211,017x = 238,226,479,140.25
5. Step 5: Solve for x
   x = 238,226,479,140.25/211,017
6. Step 6: Final answer
   x = 1,128,944.49