Finding the Third Proportional to 388,131.75 and 589,199.06

Step by Step Solution

1. Step 1: Write the proportion equation
   388,131.75 : 589,199.06 = 589,199.06 : x
2. Step 2: Convert to fraction form
   388,131.75/589,199.06 = 589,199.06/x
3. Step 3: Cross multiply
   388,131.75x = 589,199.06 × 589,199.06
4. Step 4: Simplify right side
   388,131.75x = 347,155,535,250.88
5. Step 5: Solve for x
   x = 347,155,535,250.88/388,131.75
6. Step 6: Final answer
   x = 894,427.05