Finding the Third Proportional to 715,919,979 and 1,131,852,964.50

Step by Step Solution

1. Step 1: Write the proportion equation
   715,919,979 : 1,131,852,964.50 = 1,131,852,964.50 : x
2. Step 2: Convert to fraction form
   715,919,979/1,131,852,964.50 = 1,131,852,964.50/x
3. Step 3: Cross multiply
   715,919,979x = 1,131,852,964.50 × 1,131,852,964.50
4. Step 4: Simplify right side
   715,919,979x = 1,281,091,133,247,438,336
5. Step 5: Solve for x
   x = 1,281,091,133,247,438,336/715,919,979
6. Step 6: Final answer
   x = 1,789,433,415.50