Finding the Third Proportional to 201,282 and 318,322.50

Step by Step Solution

1. Step 1: Write the proportion equation
   201,282 : 318,322.50 = 318,322.50 : x
2. Step 2: Convert to fraction form
   201,282/318,322.50 = 318,322.50/x
3. Step 3: Cross multiply
   201,282x = 318,322.50 × 318,322.50
4. Step 4: Simplify right side
   201,282x = 101,329,214,006.25
5. Step 5: Solve for x
   x = 101,329,214,006.25/201,282
6. Step 6: Final answer
   x = 503,419.15