Finding the Third Proportional to 12,979,231.50 and 19,812,091.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,979,231.50 : 19,812,091.50 = 19,812,091.50 : x
2. Step 2: Convert to fraction form
   12,979,231.50/19,812,091.50 = 19,812,091.50/x
3. Step 3: Cross multiply
   12,979,231.50x = 19,812,091.50 × 19,812,091.50
4. Step 4: Simplify right side
   12,979,231.50x = 392,518,969,604,372.25
5. Step 5: Solve for x
   x = 392,518,969,604,372.25/12,979,231.50
6. Step 6: Final answer
   x = 30,242,080.94