Finding the Third Proportional to 544,572 and 831,622.50

Step by Step Solution

1. Step 1: Write the proportion equation
   544,572 : 831,622.50 = 831,622.50 : x
2. Step 2: Convert to fraction form
   544,572/831,622.50 = 831,622.50/x
3. Step 3: Cross multiply
   544,572x = 831,622.50 × 831,622.50
4. Step 4: Simplify right side
   544,572x = 691,595,982,506.25
5. Step 5: Solve for x
   x = 691,595,982,506.25/544,572
6. Step 6: Final answer
   x = 1,269,980.80