Finding the Third Proportional to 52,015.69 and 78,570.28

Step by Step Solution

1. Step 1: Write the proportion equation
   52,015.69 : 78,570.28 = 78,570.28 : x
2. Step 2: Convert to fraction form
   52,015.69/78,570.28 = 78,570.28/x
3. Step 3: Cross multiply
   52,015.69x = 78,570.28 × 78,570.28
4. Step 4: Simplify right side
   52,015.69x = 6,173,289,095.70
5. Step 5: Solve for x
   x = 6,173,289,095.70/52,015.69
6. Step 6: Final answer
   x = 118,681.29