Finding the Third Proportional to 9,740.53 and 21,018.94

Step by Step Solution

1. Step 1: Write the proportion equation
   9,740.53 : 21,018.94 = 21,018.94 : x
2. Step 2: Convert to fraction form
   9,740.53/21,018.94 = 21,018.94/x
3. Step 3: Cross multiply
   9,740.53x = 21,018.94 × 21,018.94
4. Step 4: Simplify right side
   9,740.53x = 441,795,733.63
5. Step 5: Solve for x
   x = 441,795,733.63/9,740.53
6. Step 6: Final answer
   x = 45,356.43