Finding the Third Proportional to 13,599 and 30,892.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,599 : 30,892.50 = 30,892.50 : x
2. Step 2: Convert to fraction form
   13,599/30,892.50 = 30,892.50/x
3. Step 3: Cross multiply
   13,599x = 30,892.50 × 30,892.50
4. Step 4: Simplify right side
   13,599x = 954,346,556.25
5. Step 5: Solve for x
   x = 954,346,556.25/13,599
6. Step 6: Final answer
   x = 70,177.70