Finding the Third Proportional to 64,806.75 and 99,974.25

Step by Step Solution

1. Step 1: Write the proportion equation
   64,806.75 : 99,974.25 = 99,974.25 : x
2. Step 2: Convert to fraction form
   64,806.75/99,974.25 = 99,974.25/x
3. Step 3: Cross multiply
   64,806.75x = 99,974.25 × 99,974.25
4. Step 4: Simplify right side
   64,806.75x = 9,994,850,663.06
5. Step 5: Solve for x
   x = 9,994,850,663.06/64,806.75
6. Step 6: Final answer
   x = 154,225.46