Finding the Third Proportional to 14,603 and 21,385.50

Step by Step Solution

1. Step 1: Write the proportion equation
   14,603 : 21,385.50 = 21,385.50 : x
2. Step 2: Convert to fraction form
   14,603/21,385.50 = 21,385.50/x
3. Step 3: Cross multiply
   14,603x = 21,385.50 × 21,385.50
4. Step 4: Simplify right side
   14,603x = 457,339,610.25
5. Step 5: Solve for x
   x = 457,339,610.25/14,603
6. Step 6: Final answer
   x = 31,318.20