Finding the Third Proportional to 510,072 and 1,056,990

Step by Step Solution

1. Step 1: Write the proportion equation
   510,072 : 1,056,990 = 1,056,990 : x
2. Step 2: Convert to fraction form
   510,072/1,056,990 = 1,056,990/x
3. Step 3: Cross multiply
   510,072x = 1,056,990 × 1,056,990
4. Step 4: Simplify right side
   510,072x = 1,117,227,860,100
5. Step 5: Solve for x
   x = 1,117,227,860,100/510,072
6. Step 6: Final answer
   x = 2,190,333.64