Finding the Third Proportional to 1,931,139 and 2,921,563.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,931,139 : 2,921,563.50 = 2,921,563.50 : x
2. Step 2: Convert to fraction form
   1,931,139/2,921,563.50 = 2,921,563.50/x
3. Step 3: Cross multiply
   1,931,139x = 2,921,563.50 × 2,921,563.50
4. Step 4: Simplify right side
   1,931,139x = 8,535,533,284,532.25
5. Step 5: Solve for x
   x = 8,535,533,284,532.25/1,931,139
6. Step 6: Final answer
   x = 4,419,947.65