Finding the Third Proportional to 13,105,490 and 20,513,852

Step by Step Solution

1. Step 1: Write the proportion equation
   13,105,490 : 20,513,852 = 20,513,852 : x
2. Step 2: Convert to fraction form
   13,105,490/20,513,852 = 20,513,852/x
3. Step 3: Cross multiply
   13,105,490x = 20,513,852 × 20,513,852
4. Step 4: Simplify right side
   13,105,490x = 420,818,123,877,904
5. Step 5: Solve for x
   x = 420,818,123,877,904/13,105,490
6. Step 6: Final answer
   x = 32,110,064.09