Finding the Third Proportional to 65,712.52 and 72,000.14

Step by Step Solution

1. Step 1: Write the proportion equation
   65,712.52 : 72,000.14 = 72,000.14 : x
2. Step 2: Convert to fraction form
   65,712.52/72,000.14 = 72,000.14/x
3. Step 3: Cross multiply
   65,712.52x = 72,000.14 × 72,000.14
4. Step 4: Simplify right side
   65,712.52x = 5,184,020,250.02
5. Step 5: Solve for x
   x = 5,184,020,250.02/65,712.52
6. Step 6: Final answer
   x = 78,889.39