Finding the Third Proportional to 4,973.63 and 10,426.50

Step by Step Solution

1. Step 1: Write the proportion equation
   4,973.63 : 10,426.50 = 10,426.50 : x
2. Step 2: Convert to fraction form
   4,973.63/10,426.50 = 10,426.50/x
3. Step 3: Cross multiply
   4,973.63x = 10,426.50 × 10,426.50
4. Step 4: Simplify right side
   4,973.63x = 108,711,902.25
5. Step 5: Solve for x
   x = 108,711,902.25/4,973.63
6. Step 6: Final answer
   x = 21,857.68