Finding the Third Proportional to 90,685 and 142,983.50

Step by Step Solution

1. Step 1: Write the proportion equation
   90,685 : 142,983.50 = 142,983.50 : x
2. Step 2: Convert to fraction form
   90,685/142,983.50 = 142,983.50/x
3. Step 3: Cross multiply
   90,685x = 142,983.50 × 142,983.50
4. Step 4: Simplify right side
   90,685x = 20,444,281,272.25
5. Step 5: Solve for x
   x = 20,444,281,272.25/90,685
6. Step 6: Final answer
   x = 225,442.81