Finding the Third Proportional to 19,139.63 and 28,730.53

Step by Step Solution

1. Step 1: Write the proportion equation
   19,139.63 : 28,730.53 = 28,730.53 : x
2. Step 2: Convert to fraction form
   19,139.63/28,730.53 = 28,730.53/x
3. Step 3: Cross multiply
   19,139.63x = 28,730.53 × 28,730.53
4. Step 4: Simplify right side
   19,139.63x = 825,443,425.91
5. Step 5: Solve for x
   x = 825,443,425.91/19,139.63
6. Step 6: Final answer
   x = 43,127.46