Finding the Third Proportional to 10,210,413 and 21,772,392

Step by Step Solution

1. Step 1: Write the proportion equation
   10,210,413 : 21,772,392 = 21,772,392 : x
2. Step 2: Convert to fraction form
   10,210,413/21,772,392 = 21,772,392/x
3. Step 3: Cross multiply
   10,210,413x = 21,772,392 × 21,772,392
4. Step 4: Simplify right side
   10,210,413x = 474,037,053,401,664
5. Step 5: Solve for x
   x = 474,037,053,401,664/10,210,413
6. Step 6: Final answer
   x = 46,426,824.60