Finding the Third Proportional to 11,405,142 and 23,618,664

Step by Step Solution

1. Step 1: Write the proportion equation
   11,405,142 : 23,618,664 = 23,618,664 : x
2. Step 2: Convert to fraction form
   11,405,142/23,618,664 = 23,618,664/x
3. Step 3: Cross multiply
   11,405,142x = 23,618,664 × 23,618,664
4. Step 4: Simplify right side
   11,405,142x = 557,841,289,144,896
5. Step 5: Solve for x
   x = 557,841,289,144,896/11,405,142
6. Step 6: Final answer
   x = 48,911,384.81