Finding the Third Proportional to 357,577.50 and 744,558

Step by Step Solution

1. Step 1: Write the proportion equation
   357,577.50 : 744,558 = 744,558 : x
2. Step 2: Convert to fraction form
   357,577.50/744,558 = 744,558/x
3. Step 3: Cross multiply
   357,577.50x = 744,558 × 744,558
4. Step 4: Simplify right side
   357,577.50x = 554,366,615,364
5. Step 5: Solve for x
   x = 554,366,615,364/357,577.50
6. Step 6: Final answer
   x = 1,550,339.76