Finding the Third Proportional to 152,726 and 315,926

Step by Step Solution

1. Step 1: Write the proportion equation
   152,726 : 315,926 = 315,926 : x
2. Step 2: Convert to fraction form
   152,726/315,926 = 315,926/x
3. Step 3: Cross multiply
   152,726x = 315,926 × 315,926
4. Step 4: Simplify right side
   152,726x = 99,809,237,476
5. Step 5: Solve for x
   x = 99,809,237,476/152,726
6. Step 6: Final answer
   x = 653,518.31