Finding the Third Proportional to 5,039,664 and 7,782,326

Step by Step Solution

1. Step 1: Write the proportion equation
   5,039,664 : 7,782,326 = 7,782,326 : x
2. Step 2: Convert to fraction form
   5,039,664/7,782,326 = 7,782,326/x
3. Step 3: Cross multiply
   5,039,664x = 7,782,326 × 7,782,326
4. Step 4: Simplify right side
   5,039,664x = 60,564,597,970,276
5. Step 5: Solve for x
   x = 60,564,597,970,276/5,039,664
6. Step 6: Final answer
   x = 12,017,586.48