Finding the Third Proportional to 86,306 and 116,605.50

Step by Step Solution

1. Step 1: Write the proportion equation
   86,306 : 116,605.50 = 116,605.50 : x
2. Step 2: Convert to fraction form
   86,306/116,605.50 = 116,605.50/x
3. Step 3: Cross multiply
   86,306x = 116,605.50 × 116,605.50
4. Step 4: Simplify right side
   86,306x = 13,596,842,630.25
5. Step 5: Solve for x
   x = 13,596,842,630.25/86,306
6. Step 6: Final answer
   x = 157,542.26