Finding the Third Proportional to 386,370 and 568,381.50

Step by Step Solution

1. Step 1: Write the proportion equation
   386,370 : 568,381.50 = 568,381.50 : x
2. Step 2: Convert to fraction form
   386,370/568,381.50 = 568,381.50/x
3. Step 3: Cross multiply
   386,370x = 568,381.50 × 568,381.50
4. Step 4: Simplify right side
   386,370x = 323,057,529,542.25
5. Step 5: Solve for x
   x = 323,057,529,542.25/386,370
6. Step 6: Final answer
   x = 836,135.13