Finding the Third Proportional to 900,841.50 and 1,978,870.50

Step by Step Solution

1. Step 1: Write the proportion equation
   900,841.50 : 1,978,870.50 = 1,978,870.50 : x
2. Step 2: Convert to fraction form
   900,841.50/1,978,870.50 = 1,978,870.50/x
3. Step 3: Cross multiply
   900,841.50x = 1,978,870.50 × 1,978,870.50
4. Step 4: Simplify right side
   900,841.50x = 3,915,928,455,770.25
5. Step 5: Solve for x
   x = 3,915,928,455,770.25/900,841.50
6. Step 6: Final answer
   x = 4,346,967.20