Finding the Third Proportional to 9,742.50 and 21,041.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,742.50 : 21,041.72 = 21,041.72 : x
2. Step 2: Convert to fraction form
   9,742.50/21,041.72 = 21,041.72/x
3. Step 3: Cross multiply
   9,742.50x = 21,041.72 × 21,041.72
4. Step 4: Simplify right side
   9,742.50x = 442,753,927.95
5. Step 5: Solve for x
   x = 442,753,927.95/9,742.50
6. Step 6: Final answer
   x = 45,445.62