Finding the Third Proportional to 912,189,009 and 1,991,582,650.50

Step by Step Solution

1. Step 1: Write the proportion equation
   912,189,009 : 1,991,582,650.50 = 1,991,582,650.50 : x
2. Step 2: Convert to fraction form
   912,189,009/1,991,582,650.50 = 1,991,582,650.50/x
3. Step 3: Cross multiply
   912,189,009x = 1,991,582,650.50 × 1,991,582,650.50
4. Step 4: Simplify right side
   912,189,009x = 3,966,401,453,772,604,928
5. Step 5: Solve for x
   x = 3,966,401,453,772,604,928/912,189,009
6. Step 6: Final answer
   x = 4,348,223,246.10