Finding the Third Proportional to 40,574 and 87,389.50

Step by Step Solution

1. Step 1: Write the proportion equation
   40,574 : 87,389.50 = 87,389.50 : x
2. Step 2: Convert to fraction form
   40,574/87,389.50 = 87,389.50/x
3. Step 3: Cross multiply
   40,574x = 87,389.50 × 87,389.50
4. Step 4: Simplify right side
   40,574x = 7,636,924,710.25
5. Step 5: Solve for x
   x = 7,636,924,710.25/40,574
6. Step 6: Final answer
   x = 188,222.13