Finding the Third Proportional to 119,647.50 and 261,030

Step by Step Solution

1. Step 1: Write the proportion equation
   119,647.50 : 261,030 = 261,030 : x
2. Step 2: Convert to fraction form
   119,647.50/261,030 = 261,030/x
3. Step 3: Cross multiply
   119,647.50x = 261,030 × 261,030
4. Step 4: Simplify right side
   119,647.50x = 68,136,660,900
5. Step 5: Solve for x
   x = 68,136,660,900/119,647.50
6. Step 6: Final answer
   x = 569,478.35