Finding the Third Proportional to 21,098.81 and 30,835.69

Step by Step Solution

1. Step 1: Write the proportion equation
   21,098.81 : 30,835.69 = 30,835.69 : x
2. Step 2: Convert to fraction form
   21,098.81/30,835.69 = 30,835.69/x
3. Step 3: Cross multiply
   21,098.81x = 30,835.69 × 30,835.69
4. Step 4: Simplify right side
   21,098.81x = 950,839,623.60
5. Step 5: Solve for x
   x = 950,839,623.60/21,098.81
6. Step 6: Final answer
   x = 45,066.03