Finding the Third Proportional to 370,409 and 560,777.50

Step by Step Solution

1. Step 1: Write the proportion equation
   370,409 : 560,777.50 = 560,777.50 : x
2. Step 2: Convert to fraction form
   370,409/560,777.50 = 560,777.50/x
3. Step 3: Cross multiply
   370,409x = 560,777.50 × 560,777.50
4. Step 4: Simplify right side
   370,409x = 314,471,404,506.25
5. Step 5: Solve for x
   x = 314,471,404,506.25/370,409
6. Step 6: Final answer
   x = 848,984.24