Finding the Third Proportional to 468,145.50 and 707,139

Step by Step Solution

1. Step 1: Write the proportion equation
   468,145.50 : 707,139 = 707,139 : x
2. Step 2: Convert to fraction form
   468,145.50/707,139 = 707,139/x
3. Step 3: Cross multiply
   468,145.50x = 707,139 × 707,139
4. Step 4: Simplify right side
   468,145.50x = 500,045,565,321
5. Step 5: Solve for x
   x = 500,045,565,321/468,145.50
6. Step 6: Final answer
   x = 1,068,141.35