Finding the Third Proportional to 485,465 and 1,056,142

Step by Step Solution

1. Step 1: Write the proportion equation
   485,465 : 1,056,142 = 1,056,142 : x
2. Step 2: Convert to fraction form
   485,465/1,056,142 = 1,056,142/x
3. Step 3: Cross multiply
   485,465x = 1,056,142 × 1,056,142
4. Step 4: Simplify right side
   485,465x = 1,115,435,924,164
5. Step 5: Solve for x
   x = 1,115,435,924,164/485,465
6. Step 6: Final answer
   x = 2,297,664.97