Finding the Third Proportional to 9,021,102 and 19,670,820

Step by Step Solution

1. Step 1: Write the proportion equation
   9,021,102 : 19,670,820 = 19,670,820 : x
2. Step 2: Convert to fraction form
   9,021,102/19,670,820 = 19,670,820/x
3. Step 3: Cross multiply
   9,021,102x = 19,670,820 × 19,670,820
4. Step 4: Simplify right side
   9,021,102x = 386,941,159,472,400
5. Step 5: Solve for x
   x = 386,941,159,472,400/9,021,102
6. Step 6: Final answer
   x = 42,892,892.63