Finding the Third Proportional to 12,357.84 and 29,159.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,357.84 : 29,159.72 = 29,159.72 : x
2. Step 2: Convert to fraction form
   12,357.84/29,159.72 = 29,159.72/x
3. Step 3: Cross multiply
   12,357.84x = 29,159.72 × 29,159.72
4. Step 4: Simplify right side
   12,357.84x = 850,289,197.58
5. Step 5: Solve for x
   x = 850,289,197.58/12,357.84
6. Step 6: Final answer
   x = 68,805.63