Finding the Third Proportional to 4,345.50 and 9,487.50

Step by Step Solution

1. Step 1: Write the proportion equation
   4,345.50 : 9,487.50 = 9,487.50 : x
2. Step 2: Convert to fraction form
   4,345.50/9,487.50 = 9,487.50/x
3. Step 3: Cross multiply
   4,345.50x = 9,487.50 × 9,487.50
4. Step 4: Simplify right side
   4,345.50x = 90,012,656.25
5. Step 5: Solve for x
   x = 90,012,656.25/4,345.50
6. Step 6: Final answer
   x = 20,713.99