Finding the Third Proportional to 820,698 and 1,852,129

Step by Step Solution

1. Step 1: Write the proportion equation
   820,698 : 1,852,129 = 1,852,129 : x
2. Step 2: Convert to fraction form
   820,698/1,852,129 = 1,852,129/x
3. Step 3: Cross multiply
   820,698x = 1,852,129 × 1,852,129
4. Step 4: Simplify right side
   820,698x = 3,430,381,832,641
5. Step 5: Solve for x
   x = 3,430,381,832,641/820,698
6. Step 6: Final answer
   x = 4,179,834.52