Finding the Third Proportional to 9,821,930 and 21,427,964

Step by Step Solution

1. Step 1: Write the proportion equation
   9,821,930 : 21,427,964 = 21,427,964 : x
2. Step 2: Convert to fraction form
   9,821,930/21,427,964 = 21,427,964/x
3. Step 3: Cross multiply
   9,821,930x = 21,427,964 × 21,427,964
4. Step 4: Simplify right side
   9,821,930x = 459,157,641,185,296
5. Step 5: Solve for x
   x = 459,157,641,185,296/9,821,930
6. Step 6: Final answer
   x = 46,748,209.48