Finding the Third Proportional to 807,219 and 1,698,090

Step by Step Solution

1. Step 1: Write the proportion equation
   807,219 : 1,698,090 = 1,698,090 : x
2. Step 2: Convert to fraction form
   807,219/1,698,090 = 1,698,090/x
3. Step 3: Cross multiply
   807,219x = 1,698,090 × 1,698,090
4. Step 4: Simplify right side
   807,219x = 2,883,509,648,100
5. Step 5: Solve for x
   x = 2,883,509,648,100/807,219
6. Step 6: Final answer
   x = 3,572,152.85