Finding the Third Proportional to 1,009,666,623 and 1,508,935,111.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,009,666,623 : 1,508,935,111.50 = 1,508,935,111.50 : x
2. Step 2: Convert to fraction form
   1,009,666,623/1,508,935,111.50 = 1,508,935,111.50/x
3. Step 3: Cross multiply
   1,009,666,623x = 1,508,935,111.50 × 1,508,935,111.50
4. Step 4: Simplify right side
   1,009,666,623x = 2,276,885,170,717,517,312
5. Step 5: Solve for x
   x = 2,276,885,170,717,517,312/1,009,666,623
6. Step 6: Final answer
   x = 2,255,086,103.52