Finding the Third Proportional to 180,085.50 and 386,856

Step by Step Solution

1. Step 1: Write the proportion equation
   180,085.50 : 386,856 = 386,856 : x
2. Step 2: Convert to fraction form
   180,085.50/386,856 = 386,856/x
3. Step 3: Cross multiply
   180,085.50x = 386,856 × 386,856
4. Step 4: Simplify right side
   180,085.50x = 149,657,564,736
5. Step 5: Solve for x
   x = 149,657,564,736/180,085.50
6. Step 6: Final answer
   x = 831,036.17