Finding the Third Proportional to 8,953 and 21,060

Step by Step Solution

1. Step 1: Write the proportion equation
   8,953 : 21,060 = 21,060 : x
2. Step 2: Convert to fraction form
   8,953/21,060 = 21,060/x
3. Step 3: Cross multiply
   8,953x = 21,060 × 21,060
4. Step 4: Simplify right side
   8,953x = 443,523,600
5. Step 5: Solve for x
   x = 443,523,600/8,953
6. Step 6: Final answer
   x = 49,539.10