Finding the Third Proportional to 900,691 and 1,978,529

Step by Step Solution

1. Step 1: Write the proportion equation
   900,691 : 1,978,529 = 1,978,529 : x
2. Step 2: Convert to fraction form
   900,691/1,978,529 = 1,978,529/x
3. Step 3: Cross multiply
   900,691x = 1,978,529 × 1,978,529
4. Step 4: Simplify right side
   900,691x = 3,914,577,003,841
5. Step 5: Solve for x
   x = 3,914,577,003,841/900,691
6. Step 6: Final answer
   x = 4,346,193.09