Finding the Third Proportional to 21,637,672 and 45,689,786

Step by Step Solution

1. Step 1: Write the proportion equation
   21,637,672 : 45,689,786 = 45,689,786 : x
2. Step 2: Convert to fraction form
   21,637,672/45,689,786 = 45,689,786/x
3. Step 3: Cross multiply
   21,637,672x = 45,689,786 × 45,689,786
4. Step 4: Simplify right side
   21,637,672x = 2,087,556,544,725,796
5. Step 5: Solve for x
   x = 2,087,556,544,725,796/21,637,672
6. Step 6: Final answer
   x = 96,477,871.78