Finding the Third Proportional to 9,979,426 and 21,002,084

Step by Step Solution

1. Step 1: Write the proportion equation
   9,979,426 : 21,002,084 = 21,002,084 : x
2. Step 2: Convert to fraction form
   9,979,426/21,002,084 = 21,002,084/x
3. Step 3: Cross multiply
   9,979,426x = 21,002,084 × 21,002,084
4. Step 4: Simplify right side
   9,979,426x = 441,087,532,343,056
5. Step 5: Solve for x
   x = 441,087,532,343,056/9,979,426
6. Step 6: Final answer
   x = 44,199,689.68