Finding the Third Proportional to 10,136,556.56 and 20,991,709.69

Step by Step Solution

1. Step 1: Write the proportion equation
   10,136,556.56 : 20,991,709.69 = 20,991,709.69 : x
2. Step 2: Convert to fraction form
   10,136,556.56/20,991,709.69 = 20,991,709.69/x
3. Step 3: Cross multiply
   10,136,556.56x = 20,991,709.69 × 20,991,709.69
4. Step 4: Simplify right side
   10,136,556.56x = 440,651,875,604,281.38
5. Step 5: Solve for x
   x = 440,651,875,604,281.38/10,136,556.56
6. Step 6: Final answer
   x = 43,471,554.95