Finding the Third Proportional to 845,643 and 1,779,819

Step by Step Solution

1. Step 1: Write the proportion equation
   845,643 : 1,779,819 = 1,779,819 : x
2. Step 2: Convert to fraction form
   845,643/1,779,819 = 1,779,819/x
3. Step 3: Cross multiply
   845,643x = 1,779,819 × 1,779,819
4. Step 4: Simplify right side
   845,643x = 3,167,755,672,761
5. Step 5: Solve for x
   x = 3,167,755,672,761/845,643
6. Step 6: Final answer
   x = 3,745,972.80