Finding the Third Proportional to 207,477 and 329,980.50

Step by Step Solution

1. Step 1: Write the proportion equation
   207,477 : 329,980.50 = 329,980.50 : x
2. Step 2: Convert to fraction form
   207,477/329,980.50 = 329,980.50/x
3. Step 3: Cross multiply
   207,477x = 329,980.50 × 329,980.50
4. Step 4: Simplify right side
   207,477x = 108,887,130,380.25
5. Step 5: Solve for x
   x = 108,887,130,380.25/207,477
6. Step 6: Final answer
   x = 524,815.43