Finding the Third Proportional to 345,321 and 525,181.50

Step by Step Solution

1. Step 1: Write the proportion equation
   345,321 : 525,181.50 = 525,181.50 : x
2. Step 2: Convert to fraction form
   345,321/525,181.50 = 525,181.50/x
3. Step 3: Cross multiply
   345,321x = 525,181.50 × 525,181.50
4. Step 4: Simplify right side
   345,321x = 275,815,607,942.25
5. Step 5: Solve for x
   x = 275,815,607,942.25/345,321
6. Step 6: Final answer
   x = 798,722.37