Finding the Third Proportional to 9,754,128 and 21,439,026

Step by Step Solution

1. Step 1: Write the proportion equation
   9,754,128 : 21,439,026 = 21,439,026 : x
2. Step 2: Convert to fraction form
   9,754,128/21,439,026 = 21,439,026/x
3. Step 3: Cross multiply
   9,754,128x = 21,439,026 × 21,439,026
4. Step 4: Simplify right side
   9,754,128x = 459,631,835,828,676
5. Step 5: Solve for x
   x = 459,631,835,828,676/9,754,128
6. Step 6: Final answer
   x = 47,121,776.12