Finding the Third Proportional to 211,303.50 and 498,300

Step by Step Solution

1. Step 1: Write the proportion equation
   211,303.50 : 498,300 = 498,300 : x
2. Step 2: Convert to fraction form
   211,303.50/498,300 = 498,300/x
3. Step 3: Cross multiply
   211,303.50x = 498,300 × 498,300
4. Step 4: Simplify right side
   211,303.50x = 248,302,890,000
5. Step 5: Solve for x
   x = 248,302,890,000/211,303.50
6. Step 6: Final answer
   x = 1,175,100.70