Finding the Third Proportional to 103,478.50 and 186,403

Step by Step Solution

1. Step 1: Write the proportion equation
   103,478.50 : 186,403 = 186,403 : x
2. Step 2: Convert to fraction form
   103,478.50/186,403 = 186,403/x
3. Step 3: Cross multiply
   103,478.50x = 186,403 × 186,403
4. Step 4: Simplify right side
   103,478.50x = 34,746,078,409
5. Step 5: Solve for x
   x = 34,746,078,409/103,478.50
6. Step 6: Final answer
   x = 335,780.65