Finding the Third Proportional to 57,739.50 and 120,069

Step by Step Solution

1. Step 1: Write the proportion equation
   57,739.50 : 120,069 = 120,069 : x
2. Step 2: Convert to fraction form
   57,739.50/120,069 = 120,069/x
3. Step 3: Cross multiply
   57,739.50x = 120,069 × 120,069
4. Step 4: Simplify right side
   57,739.50x = 14,416,564,761
5. Step 5: Solve for x
   x = 14,416,564,761/57,739.50
6. Step 6: Final answer
   x = 249,682.88