Finding the Third Proportional to 9,691,871 and 21,144,141

Step by Step Solution

1. Step 1: Write the proportion equation
   9,691,871 : 21,144,141 = 21,144,141 : x
2. Step 2: Convert to fraction form
   9,691,871/21,144,141 = 21,144,141/x
3. Step 3: Cross multiply
   9,691,871x = 21,144,141 × 21,144,141
4. Step 4: Simplify right side
   9,691,871x = 447,074,698,627,881
5. Step 5: Solve for x
   x = 447,074,698,627,881/9,691,871
6. Step 6: Final answer
   x = 46,128,832.98