Finding the Third Proportional to 899,100 and 1,912,612.50

Step by Step Solution

1. Step 1: Write the proportion equation
   899,100 : 1,912,612.50 = 1,912,612.50 : x
2. Step 2: Convert to fraction form
   899,100/1,912,612.50 = 1,912,612.50/x
3. Step 3: Cross multiply
   899,100x = 1,912,612.50 × 1,912,612.50
4. Step 4: Simplify right side
   899,100x = 3,658,086,575,156.25
5. Step 5: Solve for x
   x = 3,658,086,575,156.25/899,100
6. Step 6: Final answer
   x = 4,068,609.25