Finding the Third Proportional to 199,630.50 and 301,518

Step by Step Solution

1. Step 1: Write the proportion equation
   199,630.50 : 301,518 = 301,518 : x
2. Step 2: Convert to fraction form
   199,630.50/301,518 = 301,518/x
3. Step 3: Cross multiply
   199,630.50x = 301,518 × 301,518
4. Step 4: Simplify right side
   199,630.50x = 90,913,104,324
5. Step 5: Solve for x
   x = 90,913,104,324/199,630.50
6. Step 6: Final answer
   x = 455,406.89