Finding the Third Proportional to 900,210 and 1,962,187.50

Step by Step Solution

1. Step 1: Write the proportion equation
   900,210 : 1,962,187.50 = 1,962,187.50 : x
2. Step 2: Convert to fraction form
   900,210/1,962,187.50 = 1,962,187.50/x
3. Step 3: Cross multiply
   900,210x = 1,962,187.50 × 1,962,187.50
4. Step 4: Simplify right side
   900,210x = 3,850,179,785,156.25
5. Step 5: Solve for x
   x = 3,850,179,785,156.25/900,210
6. Step 6: Final answer
   x = 4,276,979.58