Finding the Third Proportional to 891,667.50 and 1,928,772

Step by Step Solution

1. Step 1: Write the proportion equation
   891,667.50 : 1,928,772 = 1,928,772 : x
2. Step 2: Convert to fraction form
   891,667.50/1,928,772 = 1,928,772/x
3. Step 3: Cross multiply
   891,667.50x = 1,928,772 × 1,928,772
4. Step 4: Simplify right side
   891,667.50x = 3,720,161,427,984
5. Step 5: Solve for x
   x = 3,720,161,427,984/891,667.50
6. Step 6: Final answer
   x = 4,172,139.76