Finding the Third Proportional to 921,700.50 and 1,887,678

Step by Step Solution

1. Step 1: Write the proportion equation
   921,700.50 : 1,887,678 = 1,887,678 : x
2. Step 2: Convert to fraction form
   921,700.50/1,887,678 = 1,887,678/x
3. Step 3: Cross multiply
   921,700.50x = 1,887,678 × 1,887,678
4. Step 4: Simplify right side
   921,700.50x = 3,563,328,231,684
5. Step 5: Solve for x
   x = 3,563,328,231,684/921,700.50
6. Step 6: Final answer
   x = 3,866,037.00