Finding the Third Proportional to 763,138 and 1,507,069

Step by Step Solution

1. Step 1: Write the proportion equation
   763,138 : 1,507,069 = 1,507,069 : x
2. Step 2: Convert to fraction form
   763,138/1,507,069 = 1,507,069/x
3. Step 3: Cross multiply
   763,138x = 1,507,069 × 1,507,069
4. Step 4: Simplify right side
   763,138x = 2,271,256,970,761
5. Step 5: Solve for x
   x = 2,271,256,970,761/763,138
6. Step 6: Final answer
   x = 2,976,207.41