Finding the Third Proportional to 380,510.50 and 819,887

Step by Step Solution

1. Step 1: Write the proportion equation
   380,510.50 : 819,887 = 819,887 : x
2. Step 2: Convert to fraction form
   380,510.50/819,887 = 819,887/x
3. Step 3: Cross multiply
   380,510.50x = 819,887 × 819,887
4. Step 4: Simplify right side
   380,510.50x = 672,214,692,769
5. Step 5: Solve for x
   x = 672,214,692,769/380,510.50
6. Step 6: Final answer
   x = 1,766,612.73