Finding the Third Proportional to 820,702 and 1,852,139

Step by Step Solution

1. Step 1: Write the proportion equation
   820,702 : 1,852,139 = 1,852,139 : x
2. Step 2: Convert to fraction form
   820,702/1,852,139 = 1,852,139/x
3. Step 3: Cross multiply
   820,702x = 1,852,139 × 1,852,139
4. Step 4: Simplify right side
   820,702x = 3,430,418,875,321
5. Step 5: Solve for x
   x = 3,430,418,875,321/820,702
6. Step 6: Final answer
   x = 4,179,859.29