Finding the Third Proportional to 387,380 and 837,003

Step by Step Solution

1. Step 1: Write the proportion equation
   387,380 : 837,003 = 837,003 : x
2. Step 2: Convert to fraction form
   387,380/837,003 = 837,003/x
3. Step 3: Cross multiply
   387,380x = 837,003 × 837,003
4. Step 4: Simplify right side
   387,380x = 700,574,022,009
5. Step 5: Solve for x
   x = 700,574,022,009/387,380
6. Step 6: Final answer
   x = 1,808,493.01