Finding the Third Proportional to 1,538,644.50 and 3,313,915.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,538,644.50 : 3,313,915.50 = 3,313,915.50 : x
2. Step 2: Convert to fraction form
   1,538,644.50/3,313,915.50 = 3,313,915.50/x
3. Step 3: Cross multiply
   1,538,644.50x = 3,313,915.50 × 3,313,915.50
4. Step 4: Simplify right side
   1,538,644.50x = 10,982,035,941,140.25
5. Step 5: Solve for x
   x = 10,982,035,941,140.25/1,538,644.50
6. Step 6: Final answer
   x = 7,137,474.54