Finding the Third Proportional to 346,239 and 531,865.50

Step by Step Solution

1. Step 1: Write the proportion equation
   346,239 : 531,865.50 = 531,865.50 : x
2. Step 2: Convert to fraction form
   346,239/531,865.50 = 531,865.50/x
3. Step 3: Cross multiply
   346,239x = 531,865.50 × 531,865.50
4. Step 4: Simplify right side
   346,239x = 282,880,910,090.25
5. Step 5: Solve for x
   x = 282,880,910,090.25/346,239
6. Step 6: Final answer
   x = 817,010.53