Finding the Third Proportional to 9,628,587 and 21,146,454

Step by Step Solution

1. Step 1: Write the proportion equation
   9,628,587 : 21,146,454 = 21,146,454 : x
2. Step 2: Convert to fraction form
   9,628,587/21,146,454 = 21,146,454/x
3. Step 3: Cross multiply
   9,628,587x = 21,146,454 × 21,146,454
4. Step 4: Simplify right side
   9,628,587x = 447,172,516,774,116
5. Step 5: Solve for x
   x = 447,172,516,774,116/9,628,587
6. Step 6: Final answer
   x = 46,442,174.41