Finding the Third Proportional to 909,465 and 1,980,393

Step by Step Solution

1. Step 1: Write the proportion equation
   909,465 : 1,980,393 = 1,980,393 : x
2. Step 2: Convert to fraction form
   909,465/1,980,393 = 1,980,393/x
3. Step 3: Cross multiply
   909,465x = 1,980,393 × 1,980,393
4. Step 4: Simplify right side
   909,465x = 3,921,956,434,449
5. Step 5: Solve for x
   x = 3,921,956,434,449/909,465
6. Step 6: Final answer
   x = 4,312,377.53