Finding the Third Proportional to 354,528 and 758,890.50

Step by Step Solution

1. Step 1: Write the proportion equation
   354,528 : 758,890.50 = 758,890.50 : x
2. Step 2: Convert to fraction form
   354,528/758,890.50 = 758,890.50/x
3. Step 3: Cross multiply
   354,528x = 758,890.50 × 758,890.50
4. Step 4: Simplify right side
   354,528x = 575,914,790,990.25
5. Step 5: Solve for x
   x = 575,914,790,990.25/354,528
6. Step 6: Final answer
   x = 1,624,455.02