Finding the Third Proportional to 9,090 and 19,570.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,090 : 19,570.50 = 19,570.50 : x
2. Step 2: Convert to fraction form
   9,090/19,570.50 = 19,570.50/x
3. Step 3: Cross multiply
   9,090x = 19,570.50 × 19,570.50
4. Step 4: Simplify right side
   9,090x = 383,004,470.25
5. Step 5: Solve for x
   x = 383,004,470.25/9,090
6. Step 6: Final answer
   x = 42,134.71