Finding the Third Proportional to 20,490,485.50 and 31,155,300.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,490,485.50 : 31,155,300.50 = 31,155,300.50 : x
2. Step 2: Convert to fraction form
   20,490,485.50/31,155,300.50 = 31,155,300.50/x
3. Step 3: Cross multiply
   20,490,485.50x = 31,155,300.50 × 31,155,300.50
4. Step 4: Simplify right side
   20,490,485.50x = 970,652,749,245,300.25
5. Step 5: Solve for x
   x = 970,652,749,245,300.25/20,490,485.50
6. Step 6: Final answer
   x = 47,370,900.47