Finding the Third Proportional to 21,073.50 and 43,700.63

Step by Step Solution

1. Step 1: Write the proportion equation
   21,073.50 : 43,700.63 = 43,700.63 : x
2. Step 2: Convert to fraction form
   21,073.50/43,700.63 = 43,700.63/x
3. Step 3: Cross multiply
   21,073.50x = 43,700.63 × 43,700.63
4. Step 4: Simplify right side
   21,073.50x = 1,909,744,625.39
5. Step 5: Solve for x
   x = 1,909,744,625.39/21,073.50
6. Step 6: Final answer
   x = 90,623.04