Finding the Third Proportional to 599,310 and 1,287,558

Step by Step Solution

1. Step 1: Write the proportion equation
   599,310 : 1,287,558 = 1,287,558 : x
2. Step 2: Convert to fraction form
   599,310/1,287,558 = 1,287,558/x
3. Step 3: Cross multiply
   599,310x = 1,287,558 × 1,287,558
4. Step 4: Simplify right side
   599,310x = 1,657,805,603,364
5. Step 5: Solve for x
   x = 1,657,805,603,364/599,310
6. Step 6: Final answer
   x = 2,766,190.46