Finding the Third Proportional to 13,780.13 and 28,375.31

Step by Step Solution

1. Step 1: Write the proportion equation
   13,780.13 : 28,375.31 = 28,375.31 : x
2. Step 2: Convert to fraction form
   13,780.13/28,375.31 = 28,375.31/x
3. Step 3: Cross multiply
   13,780.13x = 28,375.31 × 28,375.31
4. Step 4: Simplify right side
   13,780.13x = 805,158,359.47
5. Step 5: Solve for x
   x = 805,158,359.47/13,780.13
6. Step 6: Final answer
   x = 58,428.96