Finding the Third Proportional to 4,276,603.50 and 9,306,061.50

Step by Step Solution

1. Step 1: Write the proportion equation
   4,276,603.50 : 9,306,061.50 = 9,306,061.50 : x
2. Step 2: Convert to fraction form
   4,276,603.50/9,306,061.50 = 9,306,061.50/x
3. Step 3: Cross multiply
   4,276,603.50x = 9,306,061.50 × 9,306,061.50
4. Step 4: Simplify right side
   4,276,603.50x = 86,602,780,641,782.25
5. Step 5: Solve for x
   x = 86,602,780,641,782.25/4,276,603.50
6. Step 6: Final answer
   x = 20,250,364.72