Finding the Third Proportional to 386,370 and 591,025.50

Step by Step Solution

1. Step 1: Write the proportion equation
   386,370 : 591,025.50 = 591,025.50 : x
2. Step 2: Convert to fraction form
   386,370/591,025.50 = 591,025.50/x
3. Step 3: Cross multiply
   386,370x = 591,025.50 × 591,025.50
4. Step 4: Simplify right side
   386,370x = 349,311,141,650.25
5. Step 5: Solve for x
   x = 349,311,141,650.25/386,370
6. Step 6: Final answer
   x = 904,084.53