Finding the Third Proportional to 210,174 and 455,965.50

Step by Step Solution

1. Step 1: Write the proportion equation
   210,174 : 455,965.50 = 455,965.50 : x
2. Step 2: Convert to fraction form
   210,174/455,965.50 = 455,965.50/x
3. Step 3: Cross multiply
   210,174x = 455,965.50 × 455,965.50
4. Step 4: Simplify right side
   210,174x = 207,904,537,190.25
5. Step 5: Solve for x
   x = 207,904,537,190.25/210,174
6. Step 6: Final answer
   x = 989,201.98