Finding the Third Proportional to 86,058 and 186,412.50

Step by Step Solution

1. Step 1: Write the proportion equation
   86,058 : 186,412.50 = 186,412.50 : x
2. Step 2: Convert to fraction form
   86,058/186,412.50 = 186,412.50/x
3. Step 3: Cross multiply
   86,058x = 186,412.50 × 186,412.50
4. Step 4: Simplify right side
   86,058x = 34,749,620,156.25
5. Step 5: Solve for x
   x = 34,749,620,156.25/86,058
6. Step 6: Final answer
   x = 403,793.03