Finding the Third Proportional to 91,056.75 and 142,528.78

Step by Step Solution

1. Step 1: Write the proportion equation
   91,056.75 : 142,528.78 = 142,528.78 : x
2. Step 2: Convert to fraction form
   91,056.75/142,528.78 = 142,528.78/x
3. Step 3: Cross multiply
   91,056.75x = 142,528.78 × 142,528.78
4. Step 4: Simplify right side
   91,056.75x = 20,314,453,484.61
5. Step 5: Solve for x
   x = 20,314,453,484.61/91,056.75
6. Step 6: Final answer
   x = 223,096.62