Finding the Third Proportional to 1,368,964.50 and 2,128,116

Step by Step Solution

1. Step 1: Write the proportion equation
   1,368,964.50 : 2,128,116 = 2,128,116 : x
2. Step 2: Convert to fraction form
   1,368,964.50/2,128,116 = 2,128,116/x
3. Step 3: Cross multiply
   1,368,964.50x = 2,128,116 × 2,128,116
4. Step 4: Simplify right side
   1,368,964.50x = 4,528,877,709,456
5. Step 5: Solve for x
   x = 4,528,877,709,456/1,368,964.50
6. Step 6: Final answer
   x = 3,308,250.66