Finding the Third Proportional to 763,140 and 1,507,072

Step by Step Solution

1. Step 1: Write the proportion equation
   763,140 : 1,507,072 = 1,507,072 : x
2. Step 2: Convert to fraction form
   763,140/1,507,072 = 1,507,072/x
3. Step 3: Cross multiply
   763,140x = 1,507,072 × 1,507,072
4. Step 4: Simplify right side
   763,140x = 2,271,266,013,184
5. Step 5: Solve for x
   x = 2,271,266,013,184/763,140
6. Step 6: Final answer
   x = 2,976,211.46