Finding the Third Proportional to 265,047 and 393,970.50

Step by Step Solution

1. Step 1: Write the proportion equation
   265,047 : 393,970.50 = 393,970.50 : x
2. Step 2: Convert to fraction form
   265,047/393,970.50 = 393,970.50/x
3. Step 3: Cross multiply
   265,047x = 393,970.50 × 393,970.50
4. Step 4: Simplify right side
   265,047x = 155,212,754,870.25
5. Step 5: Solve for x
   x = 155,212,754,870.25/265,047
6. Step 6: Final answer
   x = 585,604.65