Finding the Third Proportional to 64,552,464 and 139,306,068

Step by Step Solution

1. Step 1: Write the proportion equation
   64,552,464 : 139,306,068 = 139,306,068 : x
2. Step 2: Convert to fraction form
   64,552,464/139,306,068 = 139,306,068/x
3. Step 3: Cross multiply
   64,552,464x = 139,306,068 × 139,306,068
4. Step 4: Simplify right side
   64,552,464x = 19,406,180,581,620,624
5. Step 5: Solve for x
   x = 19,406,180,581,620,624/64,552,464
6. Step 6: Final answer
   x = 300,626,488.58