Finding the Third Proportional to 9,938,144 and 20,294,248

Step by Step Solution

1. Step 1: Write the proportion equation
   9,938,144 : 20,294,248 = 20,294,248 : x
2. Step 2: Convert to fraction form
   9,938,144/20,294,248 = 20,294,248/x
3. Step 3: Cross multiply
   9,938,144x = 20,294,248 × 20,294,248
4. Step 4: Simplify right side
   9,938,144x = 411,856,501,885,504
5. Step 5: Solve for x
   x = 411,856,501,885,504/9,938,144
6. Step 6: Final answer
   x = 41,441,993.79