Finding the Third Proportional to 1,391,139 and 2,931,714

Step by Step Solution

1. Step 1: Write the proportion equation
   1,391,139 : 2,931,714 = 2,931,714 : x
2. Step 2: Convert to fraction form
   1,391,139/2,931,714 = 2,931,714/x
3. Step 3: Cross multiply
   1,391,139x = 2,931,714 × 2,931,714
4. Step 4: Simplify right side
   1,391,139x = 8,594,946,977,796
5. Step 5: Solve for x
   x = 8,594,946,977,796/1,391,139
6. Step 6: Final answer
   x = 6,178,352.40