Finding the Third Proportional to 120,541.50 and 261,819

Step by Step Solution

1. Step 1: Write the proportion equation
   120,541.50 : 261,819 = 261,819 : x
2. Step 2: Convert to fraction form
   120,541.50/261,819 = 261,819/x
3. Step 3: Cross multiply
   120,541.50x = 261,819 × 261,819
4. Step 4: Simplify right side
   120,541.50x = 68,549,188,761
5. Step 5: Solve for x
   x = 68,549,188,761/120,541.50
6. Step 6: Final answer
   x = 568,677.08