Finding the Third Proportional to 52,296 and 78,930

Step by Step Solution

1. Step 1: Write the proportion equation
   52,296 : 78,930 = 78,930 : x
2. Step 2: Convert to fraction form
   52,296/78,930 = 78,930/x
3. Step 3: Cross multiply
   52,296x = 78,930 × 78,930
4. Step 4: Simplify right side
   52,296x = 6,229,944,900
5. Step 5: Solve for x
   x = 6,229,944,900/52,296
6. Step 6: Final answer
   x = 119,128.52