Finding the Third Proportional to 830,079 and 1,215,562.50

Step by Step Solution

1. Step 1: Write the proportion equation
   830,079 : 1,215,562.50 = 1,215,562.50 : x
2. Step 2: Convert to fraction form
   830,079/1,215,562.50 = 1,215,562.50/x
3. Step 3: Cross multiply
   830,079x = 1,215,562.50 × 1,215,562.50
4. Step 4: Simplify right side
   830,079x = 1,477,592,191,406.25
5. Step 5: Solve for x
   x = 1,477,592,191,406.25/830,079
6. Step 6: Final answer
   x = 1,780,062.13