Finding the Third Proportional to 99,864.56 and 140,467.50

Step by Step Solution

1. Step 1: Write the proportion equation
   99,864.56 : 140,467.50 = 140,467.50 : x
2. Step 2: Convert to fraction form
   99,864.56/140,467.50 = 140,467.50/x
3. Step 3: Cross multiply
   99,864.56x = 140,467.50 × 140,467.50
4. Step 4: Simplify right side
   99,864.56x = 19,731,118,556.25
5. Step 5: Solve for x
   x = 19,731,118,556.25/99,864.56
6. Step 6: Final answer
   x = 197,578.78