Finding the Third Proportional to 159,818 and 344,543.50

Step by Step Solution

1. Step 1: Write the proportion equation
   159,818 : 344,543.50 = 344,543.50 : x
2. Step 2: Convert to fraction form
   159,818/344,543.50 = 344,543.50/x
3. Step 3: Cross multiply
   159,818x = 344,543.50 × 344,543.50
4. Step 4: Simplify right side
   159,818x = 118,710,223,392.25
5. Step 5: Solve for x
   x = 118,710,223,392.25/159,818
6. Step 6: Final answer
   x = 742,783.81