Finding the Third Proportional to 91,485.70 and 140,795.72

Step by Step Solution

1. Step 1: Write the proportion equation
   91,485.70 : 140,795.72 = 140,795.72 : x
2. Step 2: Convert to fraction form
   91,485.70/140,795.72 = 140,795.72/x
3. Step 3: Cross multiply
   91,485.70x = 140,795.72 × 140,795.72
4. Step 4: Simplify right side
   91,485.70x = 19,823,434,418.33
5. Step 5: Solve for x
   x = 19,823,434,418.33/91,485.70
6. Step 6: Final answer
   x = 216,683.41