Finding the Third Proportional to 81,570 and 119,425.50

Step by Step Solution

1. Step 1: Write the proportion equation
   81,570 : 119,425.50 = 119,425.50 : x
2. Step 2: Convert to fraction form
   81,570/119,425.50 = 119,425.50/x
3. Step 3: Cross multiply
   81,570x = 119,425.50 × 119,425.50
4. Step 4: Simplify right side
   81,570x = 14,262,450,050.25
5. Step 5: Solve for x
   x = 14,262,450,050.25/81,570
6. Step 6: Final answer
   x = 174,849.21