Finding the Third Proportional to 563,662.50 and 993,409.50

Step by Step Solution

1. Step 1: Write the proportion equation
   563,662.50 : 993,409.50 = 993,409.50 : x
2. Step 2: Convert to fraction form
   563,662.50/993,409.50 = 993,409.50/x
3. Step 3: Cross multiply
   563,662.50x = 993,409.50 × 993,409.50
4. Step 4: Simplify right side
   563,662.50x = 986,862,434,690.25
5. Step 5: Solve for x
   x = 986,862,434,690.25/563,662.50
6. Step 6: Final answer
   x = 1,750,803.78