Finding the Third Proportional to 9,153 and 10,813.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,153 : 10,813.50 = 10,813.50 : x
2. Step 2: Convert to fraction form
   9,153/10,813.50 = 10,813.50/x
3. Step 3: Cross multiply
   9,153x = 10,813.50 × 10,813.50
4. Step 4: Simplify right side
   9,153x = 116,931,782.25
5. Step 5: Solve for x
   x = 116,931,782.25/9,153
6. Step 6: Final answer
   x = 12,775.24