Finding the Third Proportional to 39,274.88 and 72,808.88

Step by Step Solution

1. Step 1: Write the proportion equation
   39,274.88 : 72,808.88 = 72,808.88 : x
2. Step 2: Convert to fraction form
   39,274.88/72,808.88 = 72,808.88/x
3. Step 3: Cross multiply
   39,274.88x = 72,808.88 × 72,808.88
4. Step 4: Simplify right side
   39,274.88x = 5,301,132,278.77
5. Step 5: Solve for x
   x = 5,301,132,278.77/39,274.88
6. Step 6: Final answer
   x = 134,975.15