Finding the Third Proportional to 7,153.31 and 10,878.05

Step by Step Solution

1. Step 1: Write the proportion equation
   7,153.31 : 10,878.05 = 10,878.05 : x
2. Step 2: Convert to fraction form
   7,153.31/10,878.05 = 10,878.05/x
3. Step 3: Cross multiply
   7,153.31x = 10,878.05 × 10,878.05
4. Step 4: Simplify right side
   7,153.31x = 118,331,903.81
5. Step 5: Solve for x
   x = 118,331,903.81/7,153.31
6. Step 6: Final answer
   x = 16,542.25