Finding the Third Proportional to 188,111 and 291,392

Step by Step Solution

1. Step 1: Write the proportion equation
   188,111 : 291,392 = 291,392 : x
2. Step 2: Convert to fraction form
   188,111/291,392 = 291,392/x
3. Step 3: Cross multiply
   188,111x = 291,392 × 291,392
4. Step 4: Simplify right side
   188,111x = 84,909,297,664
5. Step 5: Solve for x
   x = 84,909,297,664/188,111
6. Step 6: Final answer
   x = 451,378.69