Finding the Third Proportional to 5,238,429 and 7,825,380

Step by Step Solution

1. Step 1: Write the proportion equation
   5,238,429 : 7,825,380 = 7,825,380 : x
2. Step 2: Convert to fraction form
   5,238,429/7,825,380 = 7,825,380/x
3. Step 3: Cross multiply
   5,238,429x = 7,825,380 × 7,825,380
4. Step 4: Simplify right side
   5,238,429x = 61,236,572,144,400
5. Step 5: Solve for x
   x = 61,236,572,144,400/5,238,429
6. Step 6: Final answer
   x = 11,689,873.46