Finding the Third Proportional to 88,130 and 186,306.50

Step by Step Solution

1. Step 1: Write the proportion equation
   88,130 : 186,306.50 = 186,306.50 : x
2. Step 2: Convert to fraction form
   88,130/186,306.50 = 186,306.50/x
3. Step 3: Cross multiply
   88,130x = 186,306.50 × 186,306.50
4. Step 4: Simplify right side
   88,130x = 34,710,111,942.25
5. Step 5: Solve for x
   x = 34,710,111,942.25/88,130
6. Step 6: Final answer
   x = 393,851.26