Finding the Third Proportional to 91,470 and 142,555.50

Step by Step Solution

1. Step 1: Write the proportion equation
   91,470 : 142,555.50 = 142,555.50 : x
2. Step 2: Convert to fraction form
   91,470/142,555.50 = 142,555.50/x
3. Step 3: Cross multiply
   91,470x = 142,555.50 × 142,555.50
4. Step 4: Simplify right side
   91,470x = 20,322,070,580.25
5. Step 5: Solve for x
   x = 20,322,070,580.25/91,470
6. Step 6: Final answer
   x = 222,171.98