Finding the Third Proportional to 8,699.63 and 18,967.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,699.63 : 18,967.50 = 18,967.50 : x
2. Step 2: Convert to fraction form
   8,699.63/18,967.50 = 18,967.50/x
3. Step 3: Cross multiply
   8,699.63x = 18,967.50 × 18,967.50
4. Step 4: Simplify right side
   8,699.63x = 359,766,056.25
5. Step 5: Solve for x
   x = 359,766,056.25/8,699.63
6. Step 6: Final answer
   x = 41,354.20