Finding the Third Proportional to 818,681 and 1,677,898

Step by Step Solution

1. Step 1: Write the proportion equation
   818,681 : 1,677,898 = 1,677,898 : x
2. Step 2: Convert to fraction form
   818,681/1,677,898 = 1,677,898/x
3. Step 3: Cross multiply
   818,681x = 1,677,898 × 1,677,898
4. Step 4: Simplify right side
   818,681x = 2,815,341,698,404
5. Step 5: Solve for x
   x = 2,815,341,698,404/818,681
6. Step 6: Final answer
   x = 3,438,875.09