Finding the Third Proportional to 86,456 and 188,060

Step by Step Solution

1. Step 1: Write the proportion equation
   86,456 : 188,060 = 188,060 : x
2. Step 2: Convert to fraction form
   86,456/188,060 = 188,060/x
3. Step 3: Cross multiply
   86,456x = 188,060 × 188,060
4. Step 4: Simplify right side
   86,456x = 35,366,563,600
5. Step 5: Solve for x
   x = 35,366,563,600/86,456
6. Step 6: Final answer
   x = 409,070.09