Finding the Third Proportional to 21,597.38 and 31,621.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,597.38 : 31,621.50 = 31,621.50 : x
2. Step 2: Convert to fraction form
   21,597.38/31,621.50 = 31,621.50/x
3. Step 3: Cross multiply
   21,597.38x = 31,621.50 × 31,621.50
4. Step 4: Simplify right side
   21,597.38x = 999,919,262.25
5. Step 5: Solve for x
   x = 999,919,262.25/21,597.38
6. Step 6: Final answer
   x = 46,298.18