Finding the Third Proportional to 293,870 and 436,484

Step by Step Solution

1. Step 1: Write the proportion equation
   293,870 : 436,484 = 436,484 : x
2. Step 2: Convert to fraction form
   293,870/436,484 = 436,484/x
3. Step 3: Cross multiply
   293,870x = 436,484 × 436,484
4. Step 4: Simplify right side
   293,870x = 190,518,282,256
5. Step 5: Solve for x
   x = 190,518,282,256/293,870
6. Step 6: Final answer
   x = 648,308.04