Finding the Third Proportional to 59,431.69 and 140,154.56

Step by Step Solution

1. Step 1: Write the proportion equation
   59,431.69 : 140,154.56 = 140,154.56 : x
2. Step 2: Convert to fraction form
   59,431.69/140,154.56 = 140,154.56/x
3. Step 3: Cross multiply
   59,431.69x = 140,154.56 × 140,154.56
4. Step 4: Simplify right side
   59,431.69x = 19,643,301,389.57
5. Step 5: Solve for x
   x = 19,643,301,389.57/59,431.69
6. Step 6: Final answer
   x = 330,518.99