Finding the Third Proportional to 809,648,510.63 and 1,243,935,444.38

Step by Step Solution

1. Step 1: Write the proportion equation
   809,648,510.63 : 1,243,935,444.38 = 1,243,935,444.38 : x
2. Step 2: Convert to fraction form
   809,648,510.63/1,243,935,444.38 = 1,243,935,444.38/x
3. Step 3: Cross multiply
   809,648,510.63x = 1,243,935,444.38 × 1,243,935,444.38
4. Step 4: Simplify right side
   809,648,510.63x = 1,547,375,389,772,428,800
5. Step 5: Solve for x
   x = 1,547,375,389,772,428,800/809,648,510.63
6. Step 6: Final answer
   x = 1,911,169,315.41