Finding the Third Proportional to 368,437.50 and 805,612.50

Step by Step Solution

1. Step 1: Write the proportion equation
   368,437.50 : 805,612.50 = 805,612.50 : x
2. Step 2: Convert to fraction form
   368,437.50/805,612.50 = 805,612.50/x
3. Step 3: Cross multiply
   368,437.50x = 805,612.50 × 805,612.50
4. Step 4: Simplify right side
   368,437.50x = 649,011,500,156.25
5. Step 5: Solve for x
   x = 649,011,500,156.25/368,437.50
6. Step 6: Final answer
   x = 1,761,524.00