Finding the Third Proportional to 21,085,144 and 31,852,369

Step by Step Solution

1. Step 1: Write the proportion equation
   21,085,144 : 31,852,369 = 31,852,369 : x
2. Step 2: Convert to fraction form
   21,085,144/31,852,369 = 31,852,369/x
3. Step 3: Cross multiply
   21,085,144x = 31,852,369 × 31,852,369
4. Step 4: Simplify right side
   21,085,144x = 1,014,573,410,912,161
5. Step 5: Solve for x
   x = 1,014,573,410,912,161/21,085,144
6. Step 6: Final answer
   x = 48,117,926.58