Finding the Third Proportional to 13,798.31 and 21,858.56

Step by Step Solution

1. Step 1: Write the proportion equation
   13,798.31 : 21,858.56 = 21,858.56 : x
2. Step 2: Convert to fraction form
   13,798.31/21,858.56 = 21,858.56/x
3. Step 3: Cross multiply
   13,798.31x = 21,858.56 × 21,858.56
4. Step 4: Simplify right side
   13,798.31x = 477,796,754.57
5. Step 5: Solve for x
   x = 477,796,754.57/13,798.31
6. Step 6: Final answer
   x = 34,627.19