Finding the Third Proportional to 350,748 and 757,543.50

Step by Step Solution

1. Step 1: Write the proportion equation
   350,748 : 757,543.50 = 757,543.50 : x
2. Step 2: Convert to fraction form
   350,748/757,543.50 = 757,543.50/x
3. Step 3: Cross multiply
   350,748x = 757,543.50 × 757,543.50
4. Step 4: Simplify right side
   350,748x = 573,872,154,392.25
5. Step 5: Solve for x
   x = 573,872,154,392.25/350,748
6. Step 6: Final answer
   x = 1,636,138.07