Finding the Third Proportional to 6,991.31 and 10,912.22

Step by Step Solution

1. Step 1: Write the proportion equation
   6,991.31 : 10,912.22 = 10,912.22 : x
2. Step 2: Convert to fraction form
   6,991.31/10,912.22 = 10,912.22/x
3. Step 3: Cross multiply
   6,991.31x = 10,912.22 × 10,912.22
4. Step 4: Simplify right side
   6,991.31x = 119,076,518.05
5. Step 5: Solve for x
   x = 119,076,518.05/6,991.31
6. Step 6: Final answer
   x = 17,032.07