Finding the Third Proportional to 636,602 and 1,385,164

Step by Step Solution

1. Step 1: Write the proportion equation
   636,602 : 1,385,164 = 1,385,164 : x
2. Step 2: Convert to fraction form
   636,602/1,385,164 = 1,385,164/x
3. Step 3: Cross multiply
   636,602x = 1,385,164 × 1,385,164
4. Step 4: Simplify right side
   636,602x = 1,918,679,306,896
5. Step 5: Solve for x
   x = 1,918,679,306,896/636,602
6. Step 6: Final answer
   x = 3,013,938.55