Finding the Third Proportional to 864,454 and 1,862,072

Step by Step Solution

1. Step 1: Write the proportion equation
   864,454 : 1,862,072 = 1,862,072 : x
2. Step 2: Convert to fraction form
   864,454/1,862,072 = 1,862,072/x
3. Step 3: Cross multiply
   864,454x = 1,862,072 × 1,862,072
4. Step 4: Simplify right side
   864,454x = 3,467,312,133,184
5. Step 5: Solve for x
   x = 3,467,312,133,184/864,454
6. Step 6: Final answer
   x = 4,010,985.12