Finding the Third Proportional to 492,156 and 754,488

Step by Step Solution

1. Step 1: Write the proportion equation
   492,156 : 754,488 = 754,488 : x
2. Step 2: Convert to fraction form
   492,156/754,488 = 754,488/x
3. Step 3: Cross multiply
   492,156x = 754,488 × 754,488
4. Step 4: Simplify right side
   492,156x = 569,252,142,144
5. Step 5: Solve for x
   x = 569,252,142,144/492,156
6. Step 6: Final answer
   x = 1,156,649.81