Finding the Third Proportional to 815,632 and 1,919,248

Step by Step Solution

1. Step 1: Write the proportion equation
   815,632 : 1,919,248 = 1,919,248 : x
2. Step 2: Convert to fraction form
   815,632/1,919,248 = 1,919,248/x
3. Step 3: Cross multiply
   815,632x = 1,919,248 × 1,919,248
4. Step 4: Simplify right side
   815,632x = 3,683,512,885,504
5. Step 5: Solve for x
   x = 3,683,512,885,504/815,632
6. Step 6: Final answer
   x = 4,516,145.62