Finding the Third Proportional to 5,124.80 and 7,906.10

Step by Step Solution

1. Step 1: Write the proportion equation
   5,124.80 : 7,906.10 = 7,906.10 : x
2. Step 2: Convert to fraction form
   5,124.80/7,906.10 = 7,906.10/x
3. Step 3: Cross multiply
   5,124.80x = 7,906.10 × 7,906.10
4. Step 4: Simplify right side
   5,124.80x = 62,506,349.27
5. Step 5: Solve for x
   x = 62,506,349.27/5,124.80
6. Step 6: Final answer
   x = 12,196.84