Finding the Third Proportional to 4,487,607 and 9,787,470

Step by Step Solution

1. Step 1: Write the proportion equation
   4,487,607 : 9,787,470 = 9,787,470 : x
2. Step 2: Convert to fraction form
   4,487,607/9,787,470 = 9,787,470/x
3. Step 3: Cross multiply
   4,487,607x = 9,787,470 × 9,787,470
4. Step 4: Simplify right side
   4,487,607x = 95,794,569,000,900
5. Step 5: Solve for x
   x = 95,794,569,000,900/4,487,607
6. Step 6: Final answer
   x = 21,346,470.18