Finding the Third Proportional to 4,881,290.50 and 10,166,601.50

Step by Step Solution

1. Step 1: Write the proportion equation
   4,881,290.50 : 10,166,601.50 = 10,166,601.50 : x
2. Step 2: Convert to fraction form
   4,881,290.50/10,166,601.50 = 10,166,601.50/x
3. Step 3: Cross multiply
   4,881,290.50x = 10,166,601.50 × 10,166,601.50
4. Step 4: Simplify right side
   4,881,290.50x = 103,359,786,059,802.25
5. Step 5: Solve for x
   x = 103,359,786,059,802.25/4,881,290.50
6. Step 6: Final answer
   x = 21,174,684.45