Finding the Third Proportional to 18,139.50 and 28,030.13

Step by Step Solution

1. Step 1: Write the proportion equation
   18,139.50 : 28,030.13 = 28,030.13 : x
2. Step 2: Convert to fraction form
   18,139.50/28,030.13 = 28,030.13/x
3. Step 3: Cross multiply
   18,139.50x = 28,030.13 × 28,030.13
4. Step 4: Simplify right side
   18,139.50x = 785,687,907.52
5. Step 5: Solve for x
   x = 785,687,907.52/18,139.50
6. Step 6: Final answer
   x = 43,313.65