Finding the Third Proportional to 309,652.50 and 436,047

Step by Step Solution

1. Step 1: Write the proportion equation
   309,652.50 : 436,047 = 436,047 : x
2. Step 2: Convert to fraction form
   309,652.50/436,047 = 436,047/x
3. Step 3: Cross multiply
   309,652.50x = 436,047 × 436,047
4. Step 4: Simplify right side
   309,652.50x = 190,136,986,209
5. Step 5: Solve for x
   x = 190,136,986,209/309,652.50
6. Step 6: Final answer
   x = 614,033.43