Finding the Third Proportional to 4,685,591 and 7,078,310

Step by Step Solution

1. Step 1: Write the proportion equation
   4,685,591 : 7,078,310 = 7,078,310 : x
2. Step 2: Convert to fraction form
   4,685,591/7,078,310 = 7,078,310/x
3. Step 3: Cross multiply
   4,685,591x = 7,078,310 × 7,078,310
4. Step 4: Simplify right side
   4,685,591x = 50,102,472,456,100
5. Step 5: Solve for x
   x = 50,102,472,456,100/4,685,591
6. Step 6: Final answer
   x = 10,692,882.17