Finding the Third Proportional to 9,907.31 and 13,585.22

Step by Step Solution

1. Step 1: Write the proportion equation
   9,907.31 : 13,585.22 = 13,585.22 : x
2. Step 2: Convert to fraction form
   9,907.31/13,585.22 = 13,585.22/x
3. Step 3: Cross multiply
   9,907.31x = 13,585.22 × 13,585.22
4. Step 4: Simplify right side
   9,907.31x = 184,558,168.49
5. Step 5: Solve for x
   x = 184,558,168.49/9,907.31
6. Step 6: Final answer
   x = 18,628.48