Finding the Third Proportional to 9,166.61 and 19,851.01

Step by Step Solution

1. Step 1: Write the proportion equation
   9,166.61 : 19,851.01 = 19,851.01 : x
2. Step 2: Convert to fraction form
   9,166.61/19,851.01 = 19,851.01/x
3. Step 3: Cross multiply
   9,166.61x = 19,851.01 × 19,851.01
4. Step 4: Simplify right side
   9,166.61x = 394,062,666.26
5. Step 5: Solve for x
   x = 394,062,666.26/9,166.61
6. Step 6: Final answer
   x = 42,988.94