Finding the Third Proportional to 777,910 and 1,609,820

Step by Step Solution

1. Step 1: Write the proportion equation
   777,910 : 1,609,820 = 1,609,820 : x
2. Step 2: Convert to fraction form
   777,910/1,609,820 = 1,609,820/x
3. Step 3: Cross multiply
   777,910x = 1,609,820 × 1,609,820
4. Step 4: Simplify right side
   777,910x = 2,591,520,432,400
5. Step 5: Solve for x
   x = 2,591,520,432,400/777,910
6. Step 6: Final answer
   x = 3,331,388.51