Finding the Third Proportional to 9,315 and 21,066

Step by Step Solution

1. Step 1: Write the proportion equation
   9,315 : 21,066 = 21,066 : x
2. Step 2: Convert to fraction form
   9,315/21,066 = 21,066/x
3. Step 3: Cross multiply
   9,315x = 21,066 × 21,066
4. Step 4: Simplify right side
   9,315x = 443,776,356
5. Step 5: Solve for x
   x = 443,776,356/9,315
6. Step 6: Final answer
   x = 47,641.05