Finding the Third Proportional to 657,219 and 998,125.50

Step by Step Solution

1. Step 1: Write the proportion equation
   657,219 : 998,125.50 = 998,125.50 : x
2. Step 2: Convert to fraction form
   657,219/998,125.50 = 998,125.50/x
3. Step 3: Cross multiply
   657,219x = 998,125.50 × 998,125.50
4. Step 4: Simplify right side
   657,219x = 996,254,513,750.25
5. Step 5: Solve for x
   x = 996,254,513,750.25/657,219
6. Step 6: Final answer
   x = 1,515,863.83