Finding the Third Proportional to 4,539,248 and 9,767,320

Step by Step Solution

1. Step 1: Write the proportion equation
   4,539,248 : 9,767,320 = 9,767,320 : x
2. Step 2: Convert to fraction form
   4,539,248/9,767,320 = 9,767,320/x
3. Step 3: Cross multiply
   4,539,248x = 9,767,320 × 9,767,320
4. Step 4: Simplify right side
   4,539,248x = 95,400,539,982,400
5. Step 5: Solve for x
   x = 95,400,539,982,400/4,539,248
6. Step 6: Final answer
   x = 21,016,816.00