Finding the Third Proportional to 429,948 and 918,540

Step by Step Solution

1. Step 1: Write the proportion equation
   429,948 : 918,540 = 918,540 : x
2. Step 2: Convert to fraction form
   429,948/918,540 = 918,540/x
3. Step 3: Cross multiply
   429,948x = 918,540 × 918,540
4. Step 4: Simplify right side
   429,948x = 843,715,731,600
5. Step 5: Solve for x
   x = 843,715,731,600/429,948
6. Step 6: Final answer
   x = 1,962,366.92