Finding the Third Proportional to 910,674 and 1,978,807.50

Step by Step Solution

1. Step 1: Write the proportion equation
   910,674 : 1,978,807.50 = 1,978,807.50 : x
2. Step 2: Convert to fraction form
   910,674/1,978,807.50 = 1,978,807.50/x
3. Step 3: Cross multiply
   910,674x = 1,978,807.50 × 1,978,807.50
4. Step 4: Simplify right side
   910,674x = 3,915,679,122,056.25
5. Step 5: Solve for x
   x = 3,915,679,122,056.25/910,674
6. Step 6: Final answer
   x = 4,299,759.43