Finding the Third Proportional to 196,027.50 and 288,300

Step by Step Solution

1. Step 1: Write the proportion equation
   196,027.50 : 288,300 = 288,300 : x
2. Step 2: Convert to fraction form
   196,027.50/288,300 = 288,300/x
3. Step 3: Cross multiply
   196,027.50x = 288,300 × 288,300
4. Step 4: Simplify right side
   196,027.50x = 83,116,890,000
5. Step 5: Solve for x
   x = 83,116,890,000/196,027.50
6. Step 6: Final answer
   x = 424,006.27