Finding the Third Proportional to 27,578.81 and 59,530.78

Step by Step Solution

1. Step 1: Write the proportion equation
   27,578.81 : 59,530.78 = 59,530.78 : x
2. Step 2: Convert to fraction form
   27,578.81/59,530.78 = 59,530.78/x
3. Step 3: Cross multiply
   27,578.81x = 59,530.78 × 59,530.78
4. Step 4: Simplify right side
   27,578.81x = 3,543,913,916.24
5. Step 5: Solve for x
   x = 3,543,913,916.24/27,578.81
6. Step 6: Final answer
   x = 128,501.32