Finding the Third Proportional to 856,658 and 2,029,470

Step by Step Solution

1. Step 1: Write the proportion equation
   856,658 : 2,029,470 = 2,029,470 : x
2. Step 2: Convert to fraction form
   856,658/2,029,470 = 2,029,470/x
3. Step 3: Cross multiply
   856,658x = 2,029,470 × 2,029,470
4. Step 4: Simplify right side
   856,658x = 4,118,748,480,900
5. Step 5: Solve for x
   x = 4,118,748,480,900/856,658
6. Step 6: Final answer
   x = 4,807,926.24