Finding the Third Proportional to 388,898 and 838,492

Step by Step Solution

1. Step 1: Write the proportion equation
   388,898 : 838,492 = 838,492 : x
2. Step 2: Convert to fraction form
   388,898/838,492 = 838,492/x
3. Step 3: Cross multiply
   388,898x = 838,492 × 838,492
4. Step 4: Simplify right side
   388,898x = 703,068,834,064
5. Step 5: Solve for x
   x = 703,068,834,064/388,898
6. Step 6: Final answer
   x = 1,807,848.93