Finding the Third Proportional to 5,200.88 and 10,492.88

Step by Step Solution

1. Step 1: Write the proportion equation
   5,200.88 : 10,492.88 = 10,492.88 : x
2. Step 2: Convert to fraction form
   5,200.88/10,492.88 = 10,492.88/x
3. Step 3: Cross multiply
   5,200.88x = 10,492.88 × 10,492.88
4. Step 4: Simplify right side
   5,200.88x = 110,100,425.77
5. Step 5: Solve for x
   x = 110,100,425.77/5,200.88
6. Step 6: Final answer
   x = 21,169.60