Finding the Third Proportional to 210,355.50 and 462,780

Step by Step Solution

1. Step 1: Write the proportion equation
   210,355.50 : 462,780 = 462,780 : x
2. Step 2: Convert to fraction form
   210,355.50/462,780 = 462,780/x
3. Step 3: Cross multiply
   210,355.50x = 462,780 × 462,780
4. Step 4: Simplify right side
   210,355.50x = 214,165,328,400
5. Step 5: Solve for x
   x = 214,165,328,400/210,355.50
6. Step 6: Final answer
   x = 1,018,111.38