Finding the Third Proportional to 751,978.69 and 1,623,809.53

Step by Step Solution

1. Step 1: Write the proportion equation
   751,978.69 : 1,623,809.53 = 1,623,809.53 : x
2. Step 2: Convert to fraction form
   751,978.69/1,623,809.53 = 1,623,809.53/x
3. Step 3: Cross multiply
   751,978.69x = 1,623,809.53 × 1,623,809.53
4. Step 4: Simplify right side
   751,978.69x = 2,636,757,393,778.34
5. Step 5: Solve for x
   x = 2,636,757,393,778.34/751,978.69
6. Step 6: Final answer
   x = 3,506,425.70