Finding the Third Proportional to 173,840 and 418,646

Step by Step Solution

1. Step 1: Write the proportion equation
   173,840 : 418,646 = 418,646 : x
2. Step 2: Convert to fraction form
   173,840/418,646 = 418,646/x
3. Step 3: Cross multiply
   173,840x = 418,646 × 418,646
4. Step 4: Simplify right side
   173,840x = 175,264,473,316
5. Step 5: Solve for x
   x = 175,264,473,316/173,840
6. Step 6: Final answer
   x = 1,008,194.16