Finding the Third Proportional to 642,038 and 1,391,073

Step by Step Solution

1. Step 1: Write the proportion equation
   642,038 : 1,391,073 = 1,391,073 : x
2. Step 2: Convert to fraction form
   642,038/1,391,073 = 1,391,073/x
3. Step 3: Cross multiply
   642,038x = 1,391,073 × 1,391,073
4. Step 4: Simplify right side
   642,038x = 1,935,084,091,329
5. Step 5: Solve for x
   x = 1,935,084,091,329/642,038
6. Step 6: Final answer
   x = 3,013,971.28