Finding the Third Proportional to 9,258 and 19,810.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,258 : 19,810.50 = 19,810.50 : x
2. Step 2: Convert to fraction form
   9,258/19,810.50 = 19,810.50/x
3. Step 3: Cross multiply
   9,258x = 19,810.50 × 19,810.50
4. Step 4: Simplify right side
   9,258x = 392,455,910.25
5. Step 5: Solve for x
   x = 392,455,910.25/9,258
6. Step 6: Final answer
   x = 42,391.00