Finding the Third Proportional to 7,834.13 and 12,136.31

Step by Step Solution

1. Step 1: Write the proportion equation
   7,834.13 : 12,136.31 = 12,136.31 : x
2. Step 2: Convert to fraction form
   7,834.13/12,136.31 = 12,136.31/x
3. Step 3: Cross multiply
   7,834.13x = 12,136.31 × 12,136.31
4. Step 4: Simplify right side
   7,834.13x = 147,290,081.10
5. Step 5: Solve for x
   x = 147,290,081.10/7,834.13
6. Step 6: Final answer
   x = 18,801.09