Finding the Third Proportional to 5,146,572 and 7,570,128

Step by Step Solution

1. Step 1: Write the proportion equation
   5,146,572 : 7,570,128 = 7,570,128 : x
2. Step 2: Convert to fraction form
   5,146,572/7,570,128 = 7,570,128/x
3. Step 3: Cross multiply
   5,146,572x = 7,570,128 × 7,570,128
4. Step 4: Simplify right side
   5,146,572x = 57,306,837,936,384
5. Step 5: Solve for x
   x = 57,306,837,936,384/5,146,572
6. Step 6: Final answer
   x = 11,134,953.12