Finding the Third Proportional to 141,556 and 309,364

Step by Step Solution

1. Step 1: Write the proportion equation
   141,556 : 309,364 = 309,364 : x
2. Step 2: Convert to fraction form
   141,556/309,364 = 309,364/x
3. Step 3: Cross multiply
   141,556x = 309,364 × 309,364
4. Step 4: Simplify right side
   141,556x = 95,706,084,496
5. Step 5: Solve for x
   x = 95,706,084,496/141,556
6. Step 6: Final answer
   x = 676,100.51