Finding the Third Proportional to 141,345 and 308,098.69

Step by Step Solution

1. Step 1: Write the proportion equation
   141,345 : 308,098.69 = 308,098.69 : x
2. Step 2: Convert to fraction form
   141,345/308,098.69 = 308,098.69/x
3. Step 3: Cross multiply
   141,345x = 308,098.69 × 308,098.69
4. Step 4: Simplify right side
   141,345x = 94,924,801,239.22
5. Step 5: Solve for x
   x = 94,924,801,239.22/141,345
6. Step 6: Final answer
   x = 671,582.31