Finding the Third Proportional to 271,059 and 418,876.50

Step by Step Solution

1. Step 1: Write the proportion equation
   271,059 : 418,876.50 = 418,876.50 : x
2. Step 2: Convert to fraction form
   271,059/418,876.50 = 418,876.50/x
3. Step 3: Cross multiply
   271,059x = 418,876.50 × 418,876.50
4. Step 4: Simplify right side
   271,059x = 175,457,522,252.25
5. Step 5: Solve for x
   x = 175,457,522,252.25/271,059
6. Step 6: Final answer
   x = 647,303.81