Finding the Third Proportional to 10,393.88 and 19,830.38

Step by Step Solution

1. Step 1: Write the proportion equation
   10,393.88 : 19,830.38 = 19,830.38 : x
2. Step 2: Convert to fraction form
   10,393.88/19,830.38 = 19,830.38/x
3. Step 3: Cross multiply
   10,393.88x = 19,830.38 × 19,830.38
4. Step 4: Simplify right side
   10,393.88x = 393,243,772.64
5. Step 5: Solve for x
   x = 393,243,772.64/10,393.88
6. Step 6: Final answer
   x = 37,834.18