Finding the Third Proportional to 554,384.50 and 772,397.25

Step by Step Solution

1. Step 1: Write the proportion equation
   554,384.50 : 772,397.25 = 772,397.25 : x
2. Step 2: Convert to fraction form
   554,384.50/772,397.25 = 772,397.25/x
3. Step 3: Cross multiply
   554,384.50x = 772,397.25 × 772,397.25
4. Step 4: Simplify right side
   554,384.50x = 596,597,511,807.56
5. Step 5: Solve for x
   x = 596,597,511,807.56/554,384.50
6. Step 6: Final answer
   x = 1,076,143.93