Finding the Third Proportional to 91,059.75 and 142,533.75

Step by Step Solution

1. Step 1: Write the proportion equation
   91,059.75 : 142,533.75 = 142,533.75 : x
2. Step 2: Convert to fraction form
   91,059.75/142,533.75 = 142,533.75/x
3. Step 3: Cross multiply
   91,059.75x = 142,533.75 × 142,533.75
4. Step 4: Simplify right side
   91,059.75x = 20,315,869,889.06
5. Step 5: Solve for x
   x = 20,315,869,889.06/91,059.75
6. Step 6: Final answer
   x = 223,104.83