Finding the Third Proportional to 502,578 and 739,102.50

Step by Step Solution

1. Step 1: Write the proportion equation
   502,578 : 739,102.50 = 739,102.50 : x
2. Step 2: Convert to fraction form
   502,578/739,102.50 = 739,102.50/x
3. Step 3: Cross multiply
   502,578x = 739,102.50 × 739,102.50
4. Step 4: Simplify right side
   502,578x = 546,272,505,506.25
5. Step 5: Solve for x
   x = 546,272,505,506.25/502,578
6. Step 6: Final answer
   x = 1,086,940.74