Finding the Third Proportional to 29,948,464 and 64,436,490

Step by Step Solution

1. Step 1: Write the proportion equation
   29,948,464 : 64,436,490 = 64,436,490 : x
2. Step 2: Convert to fraction form
   29,948,464/64,436,490 = 64,436,490/x
3. Step 3: Cross multiply
   29,948,464x = 64,436,490 × 64,436,490
4. Step 4: Simplify right side
   29,948,464x = 4,152,061,243,520,100
5. Step 5: Solve for x
   x = 4,152,061,243,520,100/29,948,464
6. Step 6: Final answer
   x = 138,640,206.84