Finding the Third Proportional to 9,854,684 and 21,071,276

Step by Step Solution

1. Step 1: Write the proportion equation
   9,854,684 : 21,071,276 = 21,071,276 : x
2. Step 2: Convert to fraction form
   9,854,684/21,071,276 = 21,071,276/x
3. Step 3: Cross multiply
   9,854,684x = 21,071,276 × 21,071,276
4. Step 4: Simplify right side
   9,854,684x = 443,998,672,268,176
5. Step 5: Solve for x
   x = 443,998,672,268,176/9,854,684
6. Step 6: Final answer
   x = 45,054,582.40