Finding the Third Proportional to 498,770 and 773,885.50

Step by Step Solution

1. Step 1: Write the proportion equation
   498,770 : 773,885.50 = 773,885.50 : x
2. Step 2: Convert to fraction form
   498,770/773,885.50 = 773,885.50/x
3. Step 3: Cross multiply
   498,770x = 773,885.50 × 773,885.50
4. Step 4: Simplify right side
   498,770x = 598,898,767,110.25
5. Step 5: Solve for x
   x = 598,898,767,110.25/498,770
6. Step 6: Final answer
   x = 1,200,751.38