Finding the Third Proportional to 300,140 and 708,492

Step by Step Solution

1. Step 1: Write the proportion equation
   300,140 : 708,492 = 708,492 : x
2. Step 2: Convert to fraction form
   300,140/708,492 = 708,492/x
3. Step 3: Cross multiply
   300,140x = 708,492 × 708,492
4. Step 4: Simplify right side
   300,140x = 501,960,914,064
5. Step 5: Solve for x
   x = 501,960,914,064/300,140
6. Step 6: Final answer
   x = 1,672,422.58