Finding the Third Proportional to 485,463.50 and 1,056,139

Step by Step Solution

1. Step 1: Write the proportion equation
   485,463.50 : 1,056,139 = 1,056,139 : x
2. Step 2: Convert to fraction form
   485,463.50/1,056,139 = 1,056,139/x
3. Step 3: Cross multiply
   485,463.50x = 1,056,139 × 1,056,139
4. Step 4: Simplify right side
   485,463.50x = 1,115,429,587,321
5. Step 5: Solve for x
   x = 1,115,429,587,321/485,463.50
6. Step 6: Final answer
   x = 2,297,659.02