Finding the Third Proportional to 120,742.50 and 262,242

Step by Step Solution

1. Step 1: Write the proportion equation
   120,742.50 : 262,242 = 262,242 : x
2. Step 2: Convert to fraction form
   120,742.50/262,242 = 262,242/x
3. Step 3: Cross multiply
   120,742.50x = 262,242 × 262,242
4. Step 4: Simplify right side
   120,742.50x = 68,770,866,564
5. Step 5: Solve for x
   x = 68,770,866,564/120,742.50
6. Step 6: Final answer
   x = 569,566.36