Finding the Third Proportional to 271,352 and 398,897.50

Step by Step Solution

1. Step 1: Write the proportion equation
   271,352 : 398,897.50 = 398,897.50 : x
2. Step 2: Convert to fraction form
   271,352/398,897.50 = 398,897.50/x
3. Step 3: Cross multiply
   271,352x = 398,897.50 × 398,897.50
4. Step 4: Simplify right side
   271,352x = 159,119,215,506.25
5. Step 5: Solve for x
   x = 159,119,215,506.25/271,352
6. Step 6: Final answer
   x = 586,394.11