Finding the Third Proportional to 2,142,868 and 2,910,246

Step by Step Solution

1. Step 1: Write the proportion equation
   2,142,868 : 2,910,246 = 2,910,246 : x
2. Step 2: Convert to fraction form
   2,142,868/2,910,246 = 2,910,246/x
3. Step 3: Cross multiply
   2,142,868x = 2,910,246 × 2,910,246
4. Step 4: Simplify right side
   2,142,868x = 8,469,531,780,516
5. Step 5: Solve for x
   x = 8,469,531,780,516/2,142,868
6. Step 6: Final answer
   x = 3,952,428.14