Finding the Third Proportional to 343,818 and 731,983.50

Step by Step Solution

1. Step 1: Write the proportion equation
   343,818 : 731,983.50 = 731,983.50 : x
2. Step 2: Convert to fraction form
   343,818/731,983.50 = 731,983.50/x
3. Step 3: Cross multiply
   343,818x = 731,983.50 × 731,983.50
4. Step 4: Simplify right side
   343,818x = 535,799,844,272.25
5. Step 5: Solve for x
   x = 535,799,844,272.25/343,818
6. Step 6: Final answer
   x = 1,558,382.18