Finding the Third Proportional to 715,129 and 1,060,317.50

Step by Step Solution

1. Step 1: Write the proportion equation
   715,129 : 1,060,317.50 = 1,060,317.50 : x
2. Step 2: Convert to fraction form
   715,129/1,060,317.50 = 1,060,317.50/x
3. Step 3: Cross multiply
   715,129x = 1,060,317.50 × 1,060,317.50
4. Step 4: Simplify right side
   715,129x = 1,124,273,200,806.25
5. Step 5: Solve for x
   x = 1,124,273,200,806.25/715,129
6. Step 6: Final answer
   x = 1,572,126.43