Finding the Third Proportional to 67,859.06 and 99,815.06

Step by Step Solution

1. Step 1: Write the proportion equation
   67,859.06 : 99,815.06 = 99,815.06 : x
2. Step 2: Convert to fraction form
   67,859.06/99,815.06 = 99,815.06/x
3. Step 3: Cross multiply
   67,859.06x = 99,815.06 × 99,815.06
4. Step 4: Simplify right side
   67,859.06x = 9,963,046,701.88
5. Step 5: Solve for x
   x = 9,963,046,701.88/67,859.06
6. Step 6: Final answer
   x = 146,819.69