Finding the Third Proportional to 13,321 and 28,719.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,321 : 28,719.50 = 28,719.50 : x
2. Step 2: Convert to fraction form
   13,321/28,719.50 = 28,719.50/x
3. Step 3: Cross multiply
   13,321x = 28,719.50 × 28,719.50
4. Step 4: Simplify right side
   13,321x = 824,809,680.25
5. Step 5: Solve for x
   x = 824,809,680.25/13,321
6. Step 6: Final answer
   x = 61,918.00