Finding the Third Proportional to 185,521 and 406,550

Step by Step Solution

1. Step 1: Write the proportion equation
   185,521 : 406,550 = 406,550 : x
2. Step 2: Convert to fraction form
   185,521/406,550 = 406,550/x
3. Step 3: Cross multiply
   185,521x = 406,550 × 406,550
4. Step 4: Simplify right side
   185,521x = 165,282,902,500
5. Step 5: Solve for x
   x = 165,282,902,500/185,521
6. Step 6: Final answer
   x = 890,912.09