Finding the Third Proportional to 13,378.29 and 28,601.86

Step by Step Solution

1. Step 1: Write the proportion equation
   13,378.29 : 28,601.86 = 28,601.86 : x
2. Step 2: Convert to fraction form
   13,378.29/28,601.86 = 28,601.86/x
3. Step 3: Cross multiply
   13,378.29x = 28,601.86 × 28,601.86
4. Step 4: Simplify right side
   13,378.29x = 818,066,359.71
5. Step 5: Solve for x
   x = 818,066,359.71/13,378.29
6. Step 6: Final answer
   x = 61,148.80