Finding the Third Proportional to 184,272 and 387,111

Step by Step Solution

1. Step 1: Write the proportion equation
   184,272 : 387,111 = 387,111 : x
2. Step 2: Convert to fraction form
   184,272/387,111 = 387,111/x
3. Step 3: Cross multiply
   184,272x = 387,111 × 387,111
4. Step 4: Simplify right side
   184,272x = 149,854,926,321
5. Step 5: Solve for x
   x = 149,854,926,321/184,272
6. Step 6: Final answer
   x = 813,226.79