Finding the Third Proportional to 9,575,618 and 20,478,340

Step by Step Solution

1. Step 1: Write the proportion equation
   9,575,618 : 20,478,340 = 20,478,340 : x
2. Step 2: Convert to fraction form
   9,575,618/20,478,340 = 20,478,340/x
3. Step 3: Cross multiply
   9,575,618x = 20,478,340 × 20,478,340
4. Step 4: Simplify right side
   9,575,618x = 419,362,409,155,600
5. Step 5: Solve for x
   x = 419,362,409,155,600/9,575,618
6. Step 6: Final answer
   x = 43,794,813.99