Finding the Third Proportional to 2,139,817.50 and 3,174,369.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139,817.50 : 3,174,369.75 = 3,174,369.75 : x
2. Step 2: Convert to fraction form
   2,139,817.50/3,174,369.75 = 3,174,369.75/x
3. Step 3: Cross multiply
   2,139,817.50x = 3,174,369.75 × 3,174,369.75
4. Step 4: Simplify right side
   2,139,817.50x = 10,076,623,309,715.06
5. Step 5: Solve for x
   x = 10,076,623,309,715.06/2,139,817.50
6. Step 6: Final answer
   x = 4,709,104.08