Finding the Third Proportional to 64,974 and 78,826

Step by Step Solution

1. Step 1: Write the proportion equation
   64,974 : 78,826 = 78,826 : x
2. Step 2: Convert to fraction form
   64,974/78,826 = 78,826/x
3. Step 3: Cross multiply
   64,974x = 78,826 × 78,826
4. Step 4: Simplify right side
   64,974x = 6,213,538,276
5. Step 5: Solve for x
   x = 6,213,538,276/64,974
6. Step 6: Final answer
   x = 95,631.15