Finding the Third Proportional to 141,798 and 309,354

Step by Step Solution

1. Step 1: Write the proportion equation
   141,798 : 309,354 = 309,354 : x
2. Step 2: Convert to fraction form
   141,798/309,354 = 309,354/x
3. Step 3: Cross multiply
   141,798x = 309,354 × 309,354
4. Step 4: Simplify right side
   141,798x = 95,699,897,316
5. Step 5: Solve for x
   x = 95,699,897,316/141,798
6. Step 6: Final answer
   x = 674,903.01