Finding the Third Proportional to 91,200.75 and 145,693.78

Step by Step Solution

1. Step 1: Write the proportion equation
   91,200.75 : 145,693.78 = 145,693.78 : x
2. Step 2: Convert to fraction form
   91,200.75/145,693.78 = 145,693.78/x
3. Step 3: Cross multiply
   91,200.75x = 145,693.78 × 145,693.78
4. Step 4: Simplify right side
   91,200.75x = 21,226,677,894.92
5. Step 5: Solve for x
   x = 21,226,677,894.92/91,200.75
6. Step 6: Final answer
   x = 232,746.75