Finding the Third Proportional to 64,146 and 140,482.50

Step by Step Solution

1. Step 1: Write the proportion equation
   64,146 : 140,482.50 = 140,482.50 : x
2. Step 2: Convert to fraction form
   64,146/140,482.50 = 140,482.50/x
3. Step 3: Cross multiply
   64,146x = 140,482.50 × 140,482.50
4. Step 4: Simplify right side
   64,146x = 19,735,332,806.25
5. Step 5: Solve for x
   x = 19,735,332,806.25/64,146
6. Step 6: Final answer
   x = 307,662.72