Finding the Third Proportional to 21,019.50 and 45,319.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,019.50 : 45,319.50 = 45,319.50 : x
2. Step 2: Convert to fraction form
   21,019.50/45,319.50 = 45,319.50/x
3. Step 3: Cross multiply
   21,019.50x = 45,319.50 × 45,319.50
4. Step 4: Simplify right side
   21,019.50x = 2,053,857,080.25
5. Step 5: Solve for x
   x = 2,053,857,080.25/21,019.50
6. Step 6: Final answer
   x = 97,711.99