Finding the Third Proportional to 840,780 and 1,845,072

Step by Step Solution

1. Step 1: Write the proportion equation
   840,780 : 1,845,072 = 1,845,072 : x
2. Step 2: Convert to fraction form
   840,780/1,845,072 = 1,845,072/x
3. Step 3: Cross multiply
   840,780x = 1,845,072 × 1,845,072
4. Step 4: Simplify right side
   840,780x = 3,404,290,685,184
5. Step 5: Solve for x
   x = 3,404,290,685,184/840,780
6. Step 6: Final answer
   x = 4,048,967.25