Finding the Third Proportional to 149,437.50 and 322,488

Step by Step Solution

1. Step 1: Write the proportion equation
   149,437.50 : 322,488 = 322,488 : x
2. Step 2: Convert to fraction form
   149,437.50/322,488 = 322,488/x
3. Step 3: Cross multiply
   149,437.50x = 322,488 × 322,488
4. Step 4: Simplify right side
   149,437.50x = 103,998,510,144
5. Step 5: Solve for x
   x = 103,998,510,144/149,437.50
6. Step 6: Final answer
   x = 695,933.15