Finding the Third Proportional to 865,090 and 1,898,588

Step by Step Solution

1. Step 1: Write the proportion equation
   865,090 : 1,898,588 = 1,898,588 : x
2. Step 2: Convert to fraction form
   865,090/1,898,588 = 1,898,588/x
3. Step 3: Cross multiply
   865,090x = 1,898,588 × 1,898,588
4. Step 4: Simplify right side
   865,090x = 3,604,636,393,744
5. Step 5: Solve for x
   x = 3,604,636,393,744/865,090
6. Step 6: Final answer
   x = 4,166,776.17