Finding the Third Proportional to 745,438 and 1,637,316

Step by Step Solution

1. Step 1: Write the proportion equation
   745,438 : 1,637,316 = 1,637,316 : x
2. Step 2: Convert to fraction form
   745,438/1,637,316 = 1,637,316/x
3. Step 3: Cross multiply
   745,438x = 1,637,316 × 1,637,316
4. Step 4: Simplify right side
   745,438x = 2,680,803,683,856
5. Step 5: Solve for x
   x = 2,680,803,683,856/745,438
6. Step 6: Final answer
   x = 3,596,279.88