Finding the Third Proportional to 353,746.50 and 500,070

Step by Step Solution

1. Step 1: Write the proportion equation
   353,746.50 : 500,070 = 500,070 : x
2. Step 2: Convert to fraction form
   353,746.50/500,070 = 500,070/x
3. Step 3: Cross multiply
   353,746.50x = 500,070 × 500,070
4. Step 4: Simplify right side
   353,746.50x = 250,070,004,900
5. Step 5: Solve for x
   x = 250,070,004,900/353,746.50
6. Step 6: Final answer
   x = 706,918.67