Finding the Third Proportional to 357,621 and 744,337.50

Step by Step Solution

1. Step 1: Write the proportion equation
   357,621 : 744,337.50 = 744,337.50 : x
2. Step 2: Convert to fraction form
   357,621/744,337.50 = 744,337.50/x
3. Step 3: Cross multiply
   357,621x = 744,337.50 × 744,337.50
4. Step 4: Simplify right side
   357,621x = 554,038,313,906.25
5. Step 5: Solve for x
   x = 554,038,313,906.25/357,621
6. Step 6: Final answer
   x = 1,549,233.17