Finding the Third Proportional to 64,976.50 and 141,705

Step by Step Solution

1. Step 1: Write the proportion equation
   64,976.50 : 141,705 = 141,705 : x
2. Step 2: Convert to fraction form
   64,976.50/141,705 = 141,705/x
3. Step 3: Cross multiply
   64,976.50x = 141,705 × 141,705
4. Step 4: Simplify right side
   64,976.50x = 20,080,307,025
5. Step 5: Solve for x
   x = 20,080,307,025/64,976.50
6. Step 6: Final answer
   x = 309,039.53