Finding the Third Proportional to 711,398 and 1,679,297

Step by Step Solution

1. Step 1: Write the proportion equation
   711,398 : 1,679,297 = 1,679,297 : x
2. Step 2: Convert to fraction form
   711,398/1,679,297 = 1,679,297/x
3. Step 3: Cross multiply
   711,398x = 1,679,297 × 1,679,297
4. Step 4: Simplify right side
   711,398x = 2,820,038,414,209
5. Step 5: Solve for x
   x = 2,820,038,414,209/711,398
6. Step 6: Final answer
   x = 3,964,079.76