Finding the Third Proportional to 10,438,308 and 14,699,556

Step by Step Solution

1. Step 1: Write the proportion equation
   10,438,308 : 14,699,556 = 14,699,556 : x
2. Step 2: Convert to fraction form
   10,438,308/14,699,556 = 14,699,556/x
3. Step 3: Cross multiply
   10,438,308x = 14,699,556 × 14,699,556
4. Step 4: Simplify right side
   10,438,308x = 216,076,946,597,136
5. Step 5: Solve for x
   x = 216,076,946,597,136/10,438,308
6. Step 6: Final answer
   x = 20,700,380.43