Finding the Third Proportional to 13,421.81 and 29,155.69

Step by Step Solution

1. Step 1: Write the proportion equation
   13,421.81 : 29,155.69 = 29,155.69 : x
2. Step 2: Convert to fraction form
   13,421.81/29,155.69 = 29,155.69/x
3. Step 3: Cross multiply
   13,421.81x = 29,155.69 × 29,155.69
4. Step 4: Simplify right side
   13,421.81x = 850,054,113.60
5. Step 5: Solve for x
   x = 850,054,113.60/13,421.81
6. Step 6: Final answer
   x = 63,333.78