Finding the Third Proportional to 9,110.81 and 19,618.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,110.81 : 19,618.88 = 19,618.88 : x
2. Step 2: Convert to fraction form
   9,110.81/19,618.88 = 19,618.88/x
3. Step 3: Cross multiply
   9,110.81x = 19,618.88 × 19,618.88
4. Step 4: Simplify right side
   9,110.81x = 384,900,256.27
5. Step 5: Solve for x
   x = 384,900,256.27/9,110.81
6. Step 6: Final answer
   x = 42,246.53