Finding the Third Proportional to 378,787.50 and 841,655

Step by Step Solution

1. Step 1: Write the proportion equation
   378,787.50 : 841,655 = 841,655 : x
2. Step 2: Convert to fraction form
   378,787.50/841,655 = 841,655/x
3. Step 3: Cross multiply
   378,787.50x = 841,655 × 841,655
4. Step 4: Simplify right side
   378,787.50x = 708,383,139,025
5. Step 5: Solve for x
   x = 708,383,139,025/378,787.50
6. Step 6: Final answer
   x = 1,870,133.36