Finding the Third Proportional to 13,610 and 31,365

Step by Step Solution

1. Step 1: Write the proportion equation
   13,610 : 31,365 = 31,365 : x
2. Step 2: Convert to fraction form
   13,610/31,365 = 31,365/x
3. Step 3: Cross multiply
   13,610x = 31,365 × 31,365
4. Step 4: Simplify right side
   13,610x = 983,763,225
5. Step 5: Solve for x
   x = 983,763,225/13,610
6. Step 6: Final answer
   x = 72,282.38