Finding the Third Proportional to 2,385,642 and 4,972,470

Step by Step Solution

1. Step 1: Write the proportion equation
   2,385,642 : 4,972,470 = 4,972,470 : x
2. Step 2: Convert to fraction form
   2,385,642/4,972,470 = 4,972,470/x
3. Step 3: Cross multiply
   2,385,642x = 4,972,470 × 4,972,470
4. Step 4: Simplify right side
   2,385,642x = 24,725,457,900,900
5. Step 5: Solve for x
   x = 24,725,457,900,900/2,385,642
6. Step 6: Final answer
   x = 10,364,278.42