Finding the Third Proportional to 188,308 and 413,940

Step by Step Solution

1. Step 1: Write the proportion equation
   188,308 : 413,940 = 413,940 : x
2. Step 2: Convert to fraction form
   188,308/413,940 = 413,940/x
3. Step 3: Cross multiply
   188,308x = 413,940 × 413,940
4. Step 4: Simplify right side
   188,308x = 171,346,323,600
5. Step 5: Solve for x
   x = 171,346,323,600/188,308
6. Step 6: Final answer
   x = 909,925.89