Finding the Third Proportional to 619,821 and 957,070.50

Step by Step Solution

1. Step 1: Write the proportion equation
   619,821 : 957,070.50 = 957,070.50 : x
2. Step 2: Convert to fraction form
   619,821/957,070.50 = 957,070.50/x
3. Step 3: Cross multiply
   619,821x = 957,070.50 × 957,070.50
4. Step 4: Simplify right side
   619,821x = 915,983,941,970.25
5. Step 5: Solve for x
   x = 915,983,941,970.25/619,821
6. Step 6: Final answer
   x = 1,477,820.12