Finding the Third Proportional to 2,138,400 and 4,453,096.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,138,400 : 4,453,096.50 = 4,453,096.50 : x
2. Step 2: Convert to fraction form
   2,138,400/4,453,096.50 = 4,453,096.50/x
3. Step 3: Cross multiply
   2,138,400x = 4,453,096.50 × 4,453,096.50
4. Step 4: Simplify right side
   2,138,400x = 19,830,068,438,312.25
5. Step 5: Solve for x
   x = 19,830,068,438,312.25/2,138,400
6. Step 6: Final answer
   x = 9,273,320.44