Finding the Third Proportional to 10,688.63 and 13,559.06

Step by Step Solution

1. Step 1: Write the proportion equation
   10,688.63 : 13,559.06 = 13,559.06 : x
2. Step 2: Convert to fraction form
   10,688.63/13,559.06 = 13,559.06/x
3. Step 3: Cross multiply
   10,688.63x = 13,559.06 × 13,559.06
4. Step 4: Simplify right side
   10,688.63x = 183,848,175.88
5. Step 5: Solve for x
   x = 183,848,175.88/10,688.63
6. Step 6: Final answer
   x = 17,200.36