Finding the Third Proportional to 215,058 and 485,612.50

Step by Step Solution

1. Step 1: Write the proportion equation
   215,058 : 485,612.50 = 485,612.50 : x
2. Step 2: Convert to fraction form
   215,058/485,612.50 = 485,612.50/x
3. Step 3: Cross multiply
   215,058x = 485,612.50 × 485,612.50
4. Step 4: Simplify right side
   215,058x = 235,819,500,156.25
5. Step 5: Solve for x
   x = 235,819,500,156.25/215,058
6. Step 6: Final answer
   x = 1,096,539.07