Finding the Third Proportional to 9,054 and 12,973.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,054 : 12,973.50 = 12,973.50 : x
2. Step 2: Convert to fraction form
   9,054/12,973.50 = 12,973.50/x
3. Step 3: Cross multiply
   9,054x = 12,973.50 × 12,973.50
4. Step 4: Simplify right side
   9,054x = 168,311,702.25
5. Step 5: Solve for x
   x = 168,311,702.25/9,054
6. Step 6: Final answer
   x = 18,589.76