Finding the Third Proportional to 51,679.69 and 77,518.69

Step by Step Solution

1. Step 1: Write the proportion equation
   51,679.69 : 77,518.69 = 77,518.69 : x
2. Step 2: Convert to fraction form
   51,679.69/77,518.69 = 77,518.69/x
3. Step 3: Cross multiply
   51,679.69x = 77,518.69 × 77,518.69
4. Step 4: Simplify right side
   51,679.69x = 6,009,146,911.72
5. Step 5: Solve for x
   x = 6,009,146,911.72/51,679.69
6. Step 6: Final answer
   x = 116,276.77