Finding the Third Proportional to 379,701 and 554,557.50

Step by Step Solution

1. Step 1: Write the proportion equation
   379,701 : 554,557.50 = 554,557.50 : x
2. Step 2: Convert to fraction form
   379,701/554,557.50 = 554,557.50/x
3. Step 3: Cross multiply
   379,701x = 554,557.50 × 554,557.50
4. Step 4: Simplify right side
   379,701x = 307,534,020,806.25
5. Step 5: Solve for x
   x = 307,534,020,806.25/379,701
6. Step 6: Final answer
   x = 809,937.35