Finding the Third Proportional to 978,017.50 and 2,118,824.50

Step by Step Solution

1. Step 1: Write the proportion equation
   978,017.50 : 2,118,824.50 = 2,118,824.50 : x
2. Step 2: Convert to fraction form
   978,017.50/2,118,824.50 = 2,118,824.50/x
3. Step 3: Cross multiply
   978,017.50x = 2,118,824.50 × 2,118,824.50
4. Step 4: Simplify right side
   978,017.50x = 4,489,417,261,800.25
5. Step 5: Solve for x
   x = 4,489,417,261,800.25/978,017.50
6. Step 6: Final answer
   x = 4,590,324.06