Finding the Third Proportional to 485,470 and 1,056,156

Step by Step Solution

1. Step 1: Write the proportion equation
   485,470 : 1,056,156 = 1,056,156 : x
2. Step 2: Convert to fraction form
   485,470/1,056,156 = 1,056,156/x
3. Step 3: Cross multiply
   485,470x = 1,056,156 × 1,056,156
4. Step 4: Simplify right side
   485,470x = 1,115,465,496,336
5. Step 5: Solve for x
   x = 1,115,465,496,336/485,470
6. Step 6: Final answer
   x = 2,297,702.22