Finding the Third Proportional to 18,140.63 and 28,019.81

Step by Step Solution

1. Step 1: Write the proportion equation
   18,140.63 : 28,019.81 = 28,019.81 : x
2. Step 2: Convert to fraction form
   18,140.63/28,019.81 = 28,019.81/x
3. Step 3: Cross multiply
   18,140.63x = 28,019.81 × 28,019.81
4. Step 4: Simplify right side
   18,140.63x = 785,109,892.54
5. Step 5: Solve for x
   x = 785,109,892.54/18,140.63
6. Step 6: Final answer
   x = 43,279.10