Finding the Third Proportional to 342,905 and 753,683.50

Step by Step Solution

1. Step 1: Write the proportion equation
   342,905 : 753,683.50 = 753,683.50 : x
2. Step 2: Convert to fraction form
   342,905/753,683.50 = 753,683.50/x
3. Step 3: Cross multiply
   342,905x = 753,683.50 × 753,683.50
4. Step 4: Simplify right side
   342,905x = 568,038,818,172.25
5. Step 5: Solve for x
   x = 568,038,818,172.25/342,905
6. Step 6: Final answer
   x = 1,656,548.66