Finding the Third Proportional to 15,315 and 33,364.50

Step by Step Solution

1. Step 1: Write the proportion equation
   15,315 : 33,364.50 = 33,364.50 : x
2. Step 2: Convert to fraction form
   15,315/33,364.50 = 33,364.50/x
3. Step 3: Cross multiply
   15,315x = 33,364.50 × 33,364.50
4. Step 4: Simplify right side
   15,315x = 1,113,189,860.25
5. Step 5: Solve for x
   x = 1,113,189,860.25/15,315
6. Step 6: Final answer
   x = 72,686.25