Finding the Third Proportional to 9,486 and 19,970.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,486 : 19,970.50 = 19,970.50 : x
2. Step 2: Convert to fraction form
   9,486/19,970.50 = 19,970.50/x
3. Step 3: Cross multiply
   9,486x = 19,970.50 × 19,970.50
4. Step 4: Simplify right side
   9,486x = 398,820,870.25
5. Step 5: Solve for x
   x = 398,820,870.25/9,486
6. Step 6: Final answer
   x = 42,043.10