Finding the Third Proportional to 543,917 and 764,602.50

Step by Step Solution

1. Step 1: Write the proportion equation
   543,917 : 764,602.50 = 764,602.50 : x
2. Step 2: Convert to fraction form
   543,917/764,602.50 = 764,602.50/x
3. Step 3: Cross multiply
   543,917x = 764,602.50 × 764,602.50
4. Step 4: Simplify right side
   543,917x = 584,616,983,006.25
5. Step 5: Solve for x
   x = 584,616,983,006.25/543,917
6. Step 6: Final answer
   x = 1,074,827.56